These messages are classified as follows (listed in increasing order of
desperation):
The majority of messages from the first three classifications above
(W, D & S) can be controlled using the warnings pragma.
Default warnings are always enabled unless they are explicitly disabled
with the warnings pragma or the -X switch.
The messages are in alphabetical order, without regard to upper or
lower-case. Some of these messages are generic. Spots that vary are
denoted with a %s or other printf-style escape. These escapes are
ignored by the alphabetical order, as are all characters other than
letters. To look up your message, just ignore anything that is not a
letter.
accept() on closed socket %s
-
(W closed) You tried to do an accept on a closed socket. Did you forget
to check the return value of your
socket() call? See
accept in the perlfunc manpage.
- Allocation too large: %lx
-
(X) You can't allocate more than 64K on an MS-DOS machine.
- '!' allowed only after types %s
-
(F) The '!' is allowed in
pack() and unpack() only after certain types.
See pack in the perlfunc manpage.
- Ambiguous call resolved as CORE::%s(), qualify as such or use &
-
(W ambiguous) A subroutine you have declared has the same name as a Perl
keyword, and you have used the name without qualification for calling
one or the other. Perl decided to call the builtin because the
subroutine is not imported.
To force interpretation as a subroutine call, either put an ampersand
before the subroutine name, or qualify the name with its package.
Alternatively, you can import the subroutine (or pretend that it's
imported with the use subs pragma).
To silently interpret it as the Perl operator, use the CORE:: prefix
on the operator (e.g. CORE::log($x)) or by declaring the subroutine
to be an object method (see Subroutine Attributes in the perlsub manpage or
the attributes manpage).
- Ambiguous use of %s resolved as %s
-
(W ambiguous)(S) You said something that may not be interpreted the way
you thought. Normally it's pretty easy to disambiguate it by supplying
a missing quote, operator, parenthesis pair or declaration.
- '|' and '<' may not both be specified on command line
-
(F) An error peculiar to VMS. Perl does its own command line
redirection, and found that STDIN was a pipe, and that you also tried to
redirect STDIN using '<'. Only one STDIN stream to a customer, please.
- '|' and '>' may not both be specified on command line
-
(F) An error peculiar to VMS. Perl does its own command line
redirection, and thinks you tried to redirect stdout both to a file and
into a pipe to another command. You need to choose one or the other,
though nothing's stopping you from piping into a program or Perl script
which 'splits' output into two streams, such as
open(OUT,">$ARGV[0]") or die "Can't write to $ARGV[0]: $!";
while (<STDIN>) {
print;
print OUT;
}
close OUT;
- Applying %s to %s will act on
scalar(%s)
-
(W misc) The pattern match (//), substitution (s///), and
transliteration (tr///) operators work on scalar values. If you apply
one of them to an array or a hash, it will convert the array or hash to
a scalar value -- the length of an array, or the population info of a
hash -- and then work on that scalar value. This is probably not what
you meant to do. See grep in the perlfunc manpage and map in the perlfunc manpage for
alternatives.
- Args must match #! line
-
(F) The setuid emulator requires that the arguments Perl was invoked
with match the arguments specified on the #! line. Since some systems
impose a one-argument limit on the #! line, try combining switches;
for example, turn
-w -U into -wU.
- Arg too short for msgsnd
-
(F)
msgsnd() requires a string at least as long as sizeof(long).
- %s argument is not a HASH or ARRAY element
-
(F) The argument to
exists() must be a hash or array element, such as:
$foo{$bar}
$ref->{"susie"}[12]
- %s argument is not a HASH or ARRAY element or slice
-
(F) The argument to
delete() must be either a hash or array element,
such as:
$foo{$bar}
$ref->{"susie"}[12]
or a hash or array slice, such as:
@foo[$bar, $baz, $xyzzy]
@{$ref->[12]}{"susie", "queue"}
- %s argument is not a subroutine name
-
(F) The argument to
exists() for exists &sub must be a subroutine
name, and not a subroutine call. exists &sub() will generate this
error.
- Argument ``%s'' isn't numeric%s
-
(W numeric) The indicated string was fed as an argument to an operator
that expected a numeric value instead. If you're fortunate the message
will identify which operator was so unfortunate.
- Array @%s missing the @ in argument %d of %s()
-
(D deprecated) Really old Perl let you omit the @ on array names in some
spots. This is now heavily deprecated.
- assertion botched: %s
-
(P) The malloc package that comes with Perl had an internal failure.
- Assertion failed: file ``%s''
-
(P) A general assertion failed. The file in question must be examined.
- Assignment to both a list and a scalar
-
(F) If you assign to a conditional operator, the 2nd and 3rd arguments
must either both be scalars or both be lists. Otherwise Perl won't
know which context to supply to the right side.
- Negative offset to vec in lvalue context
-
(F) When vec is called in an lvalue context, the second argument must be
greater than or equal to zero.
- Attempt to free non-arena SV: 0x%lx
-
(P internal) All SV objects are supposed to be allocated from arenas
that will be garbage collected on exit. An SV was discovered to be
outside any of those arenas.
- Attempt to free nonexistent shared string
-
(P internal) Perl maintains a reference counted internal table of
strings to optimize the storage and access of hash keys and other
strings. This indicates someone tried to decrement the reference count
of a string that can no longer be found in the table.
- Attempt to free temp prematurely
-
(W debugging) Mortalized values are supposed to be freed by the
free_tmps() routine. This indicates that something else is freeing the
SV before the free_tmps() routine gets a chance, which means that the
free_tmps() routine will be freeing an unreferenced scalar when it does
try to free it.
- Attempt to free unreferenced glob pointers
-
(P internal) The reference counts got screwed up on symbol aliases.
- Attempt to free unreferenced scalar
-
(W internal) Perl went to decrement the reference count of a scalar to
see if it would go to 0, and discovered that it had already gone to 0
earlier, and should have been freed, and in fact, probably was freed.
This could indicate that
SvREFCNT_dec() was called too many times, or
that SvREFCNT_inc() was called too few times, or that the SV was
mortalized when it shouldn't have been, or that memory has been
corrupted.
- Attempt to join self
-
(F) You tried to join a thread from within itself, which is an
impossible task. You may be joining the wrong thread, or you may need
to move the
join() to some other thread.
- Attempt to pack pointer to temporary value
-
(W pack) You tried to pass a temporary value (like the result of a
function, or a computed expression) to the ``p''
pack() template. This
means the result contains a pointer to a location that could become
invalid anytime, even before the end of the current statement. Use
literals or global values as arguments to the ``p'' pack() template to
avoid this warning.
- Attempt to use reference as lvalue in substr
-
(W substr) You supplied a reference as the first argument to
substr()
used as an lvalue, which is pretty strange. Perhaps you forgot to
dereference it first. See substr in the perlfunc manpage.
- Bad arg length for %s, is %d, should be %d
-
(F) You passed a buffer of the wrong size to one of msgctl(),
semctl()
or shmctl(). In C parlance, the correct sizes are, respectively,
sizeof(struct msqid_ds *), sizeof(struct semid_ds *), and
sizeof(struct shmid_ds *).
- Bad evalled substitution pattern
-
(F) You've used the /e switch to evaluate the replacement for a
substitution, but perl found a syntax error in the code to evaluate,
most likely an unexpected right brace '}'.
- Bad filehandle: %s
-
(F) A symbol was passed to something wanting a filehandle, but the
symbol has no filehandle associated with it. Perhaps you didn't do an
open(), or did it in another package.
- Bad
free() ignored
-
(S malloc) An internal routine called
free() on something that had never
been malloc()ed in the first place. Mandatory, but can be disabled by
setting environment variable PERL_BADFREE to 0.
This message can be seen quite often with DB_File on systems with ``hard''
dynamic linking, like AIX and OS/2. It is a bug of Berkeley DB
which is left unnoticed if DB uses forgiving system malloc().
- Bad hash
-
(P) One of the internal hash routines was passed a null HV pointer.
- Bad index while coercing array into hash
-
(F) The index looked up in the hash found as the 0'th element of a
pseudo-hash is not legal. Index values must be at 1 or greater.
See the perlref manpage.
- Badly placed ()'s
-
(A) You've accidentally run your script through csh instead
of Perl. Check the #! line, or manually feed your script into
Perl yourself.
- Bad name after %s::
-
(F) You started to name a symbol by using a package prefix, and then
didn't finish the symbol. In particular, you can't interpolate outside
of quotes, so
$var = 'myvar';
$sym = mypack::$var;
is not the same as
$var = 'myvar';
$sym = "mypack::$var";
- Bad
realloc() ignored
-
(S malloc) An internal routine called
realloc() on something that had
never been malloc()ed in the first place. Mandatory, but can be disabled
by setting environment variable PERL_BADFREE to 1.
- Bad symbol for array
-
(P) An internal request asked to add an array entry to something that
wasn't a symbol table entry.
- Bad symbol for filehandle
-
(P) An internal request asked to add a filehandle entry to something
that wasn't a symbol table entry.
- Bad symbol for hash
-
(P) An internal request asked to add a hash entry to something that
wasn't a symbol table entry.
- Bareword found in conditional
-
(W bareword) The compiler found a bareword where it expected a
conditional, which often indicates that an || or && was parsed as part
of the last argument of the previous construct, for example:
open FOO || die;
It may also indicate a misspelled constant that has been interpreted as
a bareword:
use constant TYPO => 1;
if (TYOP) { print "foo" }
The strict pragma is useful in avoiding such errors.
- Bareword ``%s'' not allowed while ``strict subs'' in use
-
(F) With ``strict subs'' in use, a bareword is only allowed as a
subroutine identifier, in curly brackets or to the left of the ``=>''
symbol. Perhaps you need to predeclare a subroutine?
- Bareword ``%s'' refers to nonexistent package
-
(W bareword) You used a qualified bareword of the form
Foo::, but the
compiler saw no other uses of that namespace before that point. Perhaps
you need to predeclare a package?
- BEGIN failed--compilation aborted
-
(F) An untrapped exception was raised while executing a BEGIN
subroutine. Compilation stops immediately and the interpreter is
exited.
- BEGIN not safe after errors--compilation aborted
-
(F) Perl found a
BEGIN {} subroutine (or a use directive, which
implies a BEGIN {}) after one or more compilation errors had already
occurred. Since the intended environment for the BEGIN {} could not
be guaranteed (due to the errors), and since subsequent code likely
depends on its correct operation, Perl just gave up.
- \1 better written as $1
-
(W syntax) Outside of patterns, backreferences live on as variables.
The use of backslashes is grandfathered on the right-hand side of a
substitution, but stylistically it's better to use the variable form
because other Perl programmers will expect it, and it works better if
there are more than 9 backreferences.
- Binary number > 0b11111111111111111111111111111111 non-portable
-
(W portable) The binary number you specified is larger than 2**32-1
(4294967295) and therefore non-portable between systems. See
the perlport manpage for more on portability concerns.
bind() on closed socket %s
-
(W closed) You tried to do a bind on a closed socket. Did you forget to
check the return value of your
socket() call? See bind in the perlfunc manpage.
- Bit vector size > 32 non-portable
-
(W portable) Using bit vector sizes larger than 32 is non-portable.
- Bizarre copy of %s in %s
-
(P) Perl detected an attempt to copy an internal value that is not
copyable.
- -P not allowed for setuid/setgid script
-
(F) The script would have to be opened by the C preprocessor by name,
which provides a race condition that breaks security.
- Buffer overflow in prime_env_iter: %s
-
(W internal) A warning peculiar to VMS. While Perl was preparing to
iterate over %ENV, it encountered a logical name or symbol definition
which was too long, so it was truncated to the string shown.
- Callback called exit
-
(F) A subroutine invoked from an external package via
call_sv()
exited by calling exit.
- %s() called too early to check prototype
-
(W prototype) You've called a function that has a prototype before the
parser saw a definition or declaration for it, and Perl could not check
that the call conforms to the prototype. You need to either add an
early prototype declaration for the subroutine in question, or move the
subroutine definition ahead of the call to get proper prototype
checking. Alternatively, if you are certain that you're calling the
function correctly, you may put an ampersand before the name to avoid
the warning. See the perlsub manpage.
- / cannot take a count
-
(F) You had an unpack template indicating a counted-length string, but
you have also specified an explicit size for the string. See
pack in the perlfunc manpage.
- Can't bless non-reference value
-
(F) Only hard references may be blessed. This is how Perl ``enforces''
encapsulation of objects. See the perlobj manpage.
- Can't call method ``%s'' in empty package ``%s''
-
(F) You called a method correctly, and it correctly indicated a package
functioning as a class, but that package doesn't have ANYTHING defined
in it, let alone methods. See the perlobj manpage.
- Can't call method ``%s'' on an undefined value
-
(F) You used the syntax of a method call, but the slot filled by the
object reference or package name contains an undefined value. Something
like this will reproduce the error:
$BADREF = undef;
process $BADREF 1,2,3;
$BADREF->process(1,2,3);
- Can't call method ``%s'' on unblessed reference
-
(F) A method call must know in what package it's supposed to run. It
ordinarily finds this out from the object reference you supply, but you
didn't supply an object reference in this case. A reference isn't an
object reference until it has been blessed. See the perlobj manpage.
- Can't call method ``%s'' without a package or object reference
-
(F) You used the syntax of a method call, but the slot filled by the
object reference or package name contains an expression that returns a
defined value which is neither an object reference nor a package name.
Something like this will reproduce the error:
$BADREF = 42;
process $BADREF 1,2,3;
$BADREF->process(1,2,3);
- Can't chdir to %s
-
(F) You called
perl -x/foo/bar, but /foo/bar is not a directory
that you can chdir to, possibly because it doesn't exist.
- Can't check filesystem of script ``%s'' for nosuid
-
(P) For some reason you can't check the filesystem of the script for
nosuid.
- Can't coerce array into hash
-
(F) You used an array where a hash was expected, but the array has no
information on how to map from keys to array indices. You can do that
only with arrays that have a hash reference at index 0.
- Can't coerce %s to integer in %s
-
(F) Certain types of SVs, in particular real symbol table entries
(typeglobs), can't be forced to stop being what they are. So you can't
say things like:
*foo += 1;
You CAN say
$foo = *foo;
$foo += 1;
but then $foo no longer contains a glob.
- Can't coerce %s to number in %s
-
(F) Certain types of SVs, in particular real symbol table entries
(typeglobs), can't be forced to stop being what they are.
- Can't coerce %s to string in %s
-
(F) Certain types of SVs, in particular real symbol table entries
(typeglobs), can't be forced to stop being what they are.
- Can't create pipe mailbox
-
(P) An error peculiar to VMS. The process is suffering from exhausted
quotas or other plumbing problems.
- Can't declare class for non-scalar %s in ``%s''
-
(S) Currently, only scalar variables can declared with a specific class
qualifier in a ``my'' or ``our'' declaration. The semantics may be extended
for other types of variables in future.
- Can't declare %s in ``%s''
-
(F) Only scalar, array, and hash variables may be declared as ``my'' or
``our'' variables. They must have ordinary identifiers as names.
- Can't do inplace edit: %s is not a regular file
-
(S inplace) You tried to use the -i switch on a special file, such as
a file in /dev, or a FIFO. The file was ignored.
- Can't do inplace edit on %s: %s
-
(S inplace) The creation of the new file failed for the indicated
reason.
- Can't do inplace edit without backup
-
(F) You're on a system such as MS-DOS that gets confused if you try
reading from a deleted (but still opened) file. You have to say
-i.bak, or some such.
- Can't do inplace edit: %s would not be unique
-
(S inplace) Your filesystem does not support filenames longer than 14
characters and Perl was unable to create a unique filename during
inplace editing with the -i switch. The file was ignored.
- Can't do {n,m} with n > m before << HERE in regex m/%s/
-
(F) Minima must be less than or equal to maxima. If you really want your
regexp to match something 0 times, just put {0}. The << HERE shows in the
regular expression about where the problem was discovered. See the perlre manpage.
- Can't do setegid!
-
(P) The
setegid() call failed for some reason in the setuid emulator of
suidperl.
- Can't do seteuid!
-
(P) The setuid emulator of suidperl failed for some reason.
- Can't do setuid
-
(F) This typically means that ordinary perl tried to exec suidperl to do
setuid emulation, but couldn't exec it. It looks for a name of the form
sperl5.000 in the same directory that the perl executable resides under
the name perl5.000, typically /usr/local/bin on Unix machines. If the
file is there, check the execute permissions. If it isn't, ask your
sysadmin why he and/or she removed it.
- Can't do waitpid with flags
-
(F) This machine doesn't have either
waitpid() or wait4(), so only
waitpid() without flags is emulated.
- Can't emulate -%s on #! line
-
(F) The #! line specifies a switch that doesn't make sense at this
point. For example, it'd be kind of silly to put a -x on the #!
line.
- Can't exec ``%s'': %s
-
(W exec) An system(), exec(), or piped open call could not execute the
named program for the indicated reason. Typical reasons include: the
permissions were wrong on the file, the file wasn't found in
$ENV{PATH}, the executable in question was compiled for another
architecture, or the #! line in a script points to an interpreter that
can't be run for similar reasons. (Or maybe your system doesn't support
#! at all.)
- Can't exec %s
-
(F) Perl was trying to execute the indicated program for you because
that's what the #! line said. If that's not what you wanted, you may
need to mention ``perl'' on the #! line somewhere.
- Can't execute %s
-
(F) You used the -S switch, but the copies of the script to execute
found in the PATH did not have correct permissions.
- Can't find an opnumber for ``%s''
-
(F) A string of a form
CORE::word was given to prototype(), but there
is no builtin with the name word.
- Can't find label %s
-
(F) You said to goto a label that isn't mentioned anywhere that it's
possible for us to go to. See goto in the perlfunc manpage.
- Can't find %s on PATH
-
(F) You used the -S switch, but the script to execute could not be
found in the PATH.
- Can't find %s on PATH, '.' not in PATH
-
(F) You used the -S switch, but the script to execute could not be
found in the PATH, or at least not with the correct permissions. The
script exists in the current directory, but PATH prohibits running it.
- Can't find string terminator %s anywhere before EOF
-
(F) Perl strings can stretch over multiple lines. This message means
that the closing delimiter was omitted. Because bracketed quotes count
nesting levels, the following is missing its final parenthesis:
print q(The character '(' starts a side comment.);
If you're getting this error from a here-document, you may have included
unseen whitespace before or after your closing tag. A good programmer's
editor will have a way to help you find these characters.
- Can't find %s property definition %s
-
(F) You may have tried to use
\p which means a Unicode property for
example \p{Lu} is all uppercase letters. Escape the \p, either
\\p (just the \p) or by \Q\p (the rest of the string, until
possible \E).
- Can't fork
-
(F) A fatal error occurred while trying to fork while opening a
pipeline.
- Can't get filespec - stale stat buffer?
-
(S) A warning peculiar to VMS. This arises because of the difference
between access checks under VMS and under the Unix model Perl assumes.
Under VMS, access checks are done by filename, rather than by bits in
the stat buffer, so that ACLs and other protections can be taken into
account. Unfortunately, Perl assumes that the stat buffer contains all
the necessary information, and passes it, instead of the filespec, to
the access checking routine. It will try to retrieve the filespec using
the device name and FID present in the stat buffer, but this works only
if you haven't made a subsequent call to the CRTL
stat() routine,
because the device name is overwritten with each call. If this warning
appears, the name lookup failed, and the access checking routine gave up
and returned FALSE, just to be conservative. (Note: The access checking
routine knows about the Perl stat operator and file tests, so you
shouldn't ever see this warning in response to a Perl command; it arises
only if some internal code takes stat buffers lightly.)
- Can't get pipe mailbox device name
-
(P) An error peculiar to VMS. After creating a mailbox to act as a
pipe, Perl can't retrieve its name for later use.
- Can't get SYSGEN parameter value for MAXBUF
-
(P) An error peculiar to VMS. Perl asked $GETSYI how big you want your
mailbox buffers to be, and didn't get an answer.
- Can't ``goto'' into the middle of a foreach loop
-
(F) A ``goto'' statement was executed to jump into the middle of a foreach
loop. You can't get there from here. See goto in the perlfunc manpage.
- Can't ``goto'' out of a pseudo block
-
(F) A ``goto'' statement was executed to jump out of what might look like
a block, except that it isn't a proper block. This usually occurs if
you tried to jump out of a
sort() block or subroutine, which is a no-no.
See goto in the perlfunc manpage.
- Can't goto subroutine from an eval-string
-
(F) The ``goto subroutine'' call can't be used to jump out of an eval
``string''. (You can use it to jump out of an eval {BLOCK}, but you
probably don't want to.)
- Can't goto subroutine outside a subroutine
-
(F) The deeply magical ``goto subroutine'' call can only replace one
subroutine call for another. It can't manufacture one out of whole
cloth. In general you should be calling it out of only an AUTOLOAD
routine anyway. See goto in the perlfunc manpage.
- Can't ignore signal CHLD, forcing to default
-
(W signal) Perl has detected that it is being run with the SIGCHLD
signal (sometimes known as SIGCLD) disabled. Since disabling this
signal will interfere with proper determination of exit status of child
processes, Perl has reset the signal to its default value. This
situation typically indicates that the parent program under which Perl
may be running (e.g. cron) is being very careless.
- Can't ``last'' outside a loop block
-
(F) A ``last'' statement was executed to break out of the current block,
except that there's this itty bitty problem called there isn't a current
block. Note that an ``if'' or ``else'' block doesn't count as a ``loopish''
block, as doesn't a block given to sort(),
map() or grep(). You can
usually double the curlies to get the same effect though, because the
inner curlies will be considered a block that loops once. See
last in the perlfunc manpage.
- Can't localize lexical variable %s
-
(F) You used local on a variable name that was previously declared as a
lexical variable using ``my''. This is not allowed. If you want to
localize a package variable of the same name, qualify it with the
package name.
- Can't localize pseudo-hash element
-
(F) You said something like
local $ar->{'key'}, where $ar is a
reference to a pseudo-hash. That hasn't been implemented yet, but you
can get a similar effect by localizing the corresponding array element
directly -- local $ar->[$ar->[0]{'key'}].
- Can't localize through a reference
-
(F) You said something like
local $$ref, which Perl can't currently
handle, because when it goes to restore the old value of whatever $ref
pointed to after the scope of the local() is finished, it can't be sure
that $ref will still be a reference.
- Can't locate %s
-
(F) You said to
do (or require, or use) a file that couldn't be
found. Perl looks for the file in all the locations mentioned in @INC,
unless the file name included the full path to the file. Perhaps you
need to set the PERL5LIB or PERL5OPT environment variable to say where
the extra library is, or maybe the script needs to add the library name
to @INC. Or maybe you just misspelled the name of the file. See
require in the perlfunc manpage and the lib manpage.
- Can't locate auto/%s.al in @INC
-
(F) A function (or method) was called in a package which allows
autoload, but there is no function to autoload. Most probable causes
are a misprint in a function/method name or a failure to
AutoSplit
the file, say, by doing make install.
- Can't locate object method ``%s'' via package ``%s''
-
(F) You called a method correctly, and it correctly indicated a package
functioning as a class, but that package doesn't define that particular
method, nor does any of its base classes. See the perlobj manpage.
- (perhaps you forgot to load ``%s''?)
-
(F) This is an educated guess made in conjunction with the message
``Can't locate object method \''%s\`` via package \''%s\``''. It often means
that a method requires a package that has not been loaded.
- Can't locate package %s for @%s::ISA
-
(W syntax) The @ISA array contained the name of another package that
doesn't seem to exist.
- Can't make list assignment to \%ENV on this system
-
(F) List assignment to %ENV is not supported on some systems, notably
VMS.
- Can't modify %s in %s
-
(F) You aren't allowed to assign to the item indicated, or otherwise try
to change it, such as with an auto-increment.
- Can't modify nonexistent substring
-
(P) The internal routine that does assignment to a
substr() was handed
a NULL.
- Can't modify non-lvalue subroutine call
-
(F) Subroutines meant to be used in lvalue context should be declared as
such, see Lvalue subroutines in the perlsub manpage.
- Can't msgrcv to read-only var
-
(F) The target of a msgrcv must be modifiable to be used as a receive
buffer.
- Can't ``next'' outside a loop block
-
(F) A ``next'' statement was executed to reiterate the current block, but
there isn't a current block. Note that an ``if'' or ``else'' block doesn't
count as a ``loopish'' block, as doesn't a block given to sort(),
map() or
grep(). You can usually double the curlies to get the same effect
though, because the inner curlies will be considered a block that loops
once. See next in the perlfunc manpage.
- Can't open %s: %s
-
(S inplace) The implicit opening of a file through use of the
<>
filehandle, either implicitly under the -n or -p command-line
switches, or explicitly, failed for the indicated reason. Usually this
is because you don't have read permission for a file which you named on
the command line.
- Can't open bidirectional pipe
-
(W pipe) You tried to say
open(CMD, "|cmd|"), which is not supported.
You can try any of several modules in the Perl library to do this, such
as IPC::Open2. Alternately, direct the pipe's output to a file using
``>'', and then read it in under a different file handle.
- Can't open error file %s as stderr
-
(F) An error peculiar to VMS. Perl does its own command line
redirection, and couldn't open the file specified after '2>' or '2>>' on
the command line for writing.
- Can't open input file %s as stdin
-
(F) An error peculiar to VMS. Perl does its own command line
redirection, and couldn't open the file specified after '<' on the
command line for reading.
- Can't open output file %s as stdout
-
(F) An error peculiar to VMS. Perl does its own command line
redirection, and couldn't open the file specified after '>' or '>>' on
the command line for writing.
- Can't open output pipe (name: %s)
-
(P) An error peculiar to VMS. Perl does its own command line
redirection, and couldn't open the pipe into which to send data destined
for stdout.
- Can't open perl script ``%s'': %s
-
(F) The script you specified can't be opened for the indicated reason.
- Can't read CRTL environ
-
(S) A warning peculiar to VMS. Perl tried to read an element of %ENV
from the CRTL's internal environment array and discovered the array was
missing. You need to figure out where your CRTL misplaced its environ
or define PERL_ENV_TABLES (see the perlvms manpage) so that environ is not
searched.
- Can't redefine active sort subroutine %s
-
(F) Perl optimizes the internal handling of sort subroutines and keeps
pointers into them. You tried to redefine one such sort subroutine when
it was currently active, which is not allowed. If you really want to do
this, you should write
sort { &func } @x instead of sort func @x.
- Can't ``redo'' outside a loop block
-
(F) A ``redo'' statement was executed to restart the current block, but
there isn't a current block. Note that an ``if'' or ``else'' block doesn't
count as a ``loopish'' block, as doesn't a block given to sort(),
map()
or grep(). You can usually double the curlies to get the same effect
though, because the inner curlies will be considered a block that
loops once. See redo in the perlfunc manpage.
- Can't remove %s: %s, skipping file
-
(S inplace) You requested an inplace edit without creating a backup
file. Perl was unable to remove the original file to replace it with
the modified file. The file was left unmodified.
- Can't rename %s to %s: %s, skipping file
-
(S inplace) The rename done by the -i switch failed for some reason,
probably because you don't have write permission to the directory.
- Can't reopen input pipe (name: %s) in binary mode
-
(P) An error peculiar to VMS. Perl thought stdin was a pipe, and tried
to reopen it to accept binary data. Alas, it failed.
- Can't resolve method `%s' overloading `%s' in package `%s'
-
(F|P) Error resolving overloading specified by a method name (as opposed
to a subroutine reference): no such method callable via the package. If
method name is
???, this is an internal error.
- Can't reswap uid and euid
-
(P) The
setreuid() call failed for some reason in the setuid emulator of
suidperl.
- Can't return %s from lvalue subroutine
-
(F) Perl detected an attempt to return illegal lvalues (such as
temporary or readonly values) from a subroutine used as an lvalue. This
is not allowed.
- Can't return %s to lvalue scalar context
-
(F) You tried to return a complete array or hash from an lvalue subroutine,
but you called the subroutine in a way that made Perl think you meant
to return only one value. You probably meant to write parentheses around
the call to the subroutine, which tell Perl that the call should be in
list context.
- Can't return outside a subroutine
-
(F) The return statement was executed in mainline code, that is, where
there was no subroutine call to return out of. See the perlsub manpage.
- Can't stat script ``%s''
-
(P) For some reason you can't
fstat() the script even though you have it
open already. Bizarre.
- Can't swap uid and euid
-
(P) The
setreuid() call failed for some reason in the setuid emulator of
suidperl.
- Can't take log of %g
-
(F) For ordinary real numbers, you can't take the logarithm of a
negative number or zero. There's a Math::Complex package that comes
standard with Perl, though, if you really want to do that for the
negative numbers.
- Can't take sqrt of %g
-
(F) For ordinary real numbers, you can't take the square root of a
negative number. There's a Math::Complex package that comes standard
with Perl, though, if you really want to do that.
- Can't undef active subroutine
-
(F) You can't undefine a routine that's currently running. You can,
however, redefine it while it's running, and you can even undef the
redefined subroutine while the old routine is running. Go figure.
- Can't unshift
-
(F) You tried to unshift an ``unreal'' array that can't be unshifted, such
as the main Perl stack.
- Can't upgrade that kind of scalar
-
(P) The internal sv_upgrade routine adds ``members'' to an SV, making it
into a more specialized kind of SV. The top several SV types are so
specialized, however, that they cannot be interconverted. This message
indicates that such a conversion was attempted.
- Can't upgrade to undef
-
(P) The undefined SV is the bottom of the totem pole, in the scheme of
upgradability. Upgrading to undef indicates an error in the code
calling sv_upgrade.
- Can't use an undefined value as %s reference
-
(F) A value used as either a hard reference or a symbolic reference must
be a defined value. This helps to delurk some insidious errors.
- Can't use bareword (``%s'') as %s ref while ``strict refs'' in use
-
(F) Only hard references are allowed by ``strict refs''. Symbolic
references are disallowed. See the perlref manpage.
- Can't use %! because Errno.pm is not available
-
(F) The first time the %! hash is used, perl automatically loads the
Errno.pm module. The Errno module is expected to tie the %! hash to
provide symbolic names for
$! errno values.
- Can't use %s for loop variable
-
(F) Only a simple scalar variable may be used as a loop variable on a
foreach.
- Can't use global %s in ``my''
-
(F) You tried to declare a magical variable as a lexical variable. This
is not allowed, because the magic can be tied to only one location
(namely the global variable) and it would be incredibly confusing to
have variables in your program that looked like magical variables but
weren't.
- Can't use ``my %s'' in sort comparison
-
(F) The global variables $a and $b are reserved for sort comparisons.
You mentioned $a or $b in the same line as the <=> or cmp operator,
and the variable had earlier been declared as a lexical variable.
Either qualify the sort variable with the package name, or rename the
lexical variable.
- Can't use %s ref as %s ref
-
(F) You've mixed up your reference types. You have to dereference a
reference of the type needed. You can use the
ref() function to
test the type of the reference, if need be.
- Can't use string (``%s'') as %s ref while ``strict refs'' in use
-
(F) Only hard references are allowed by ``strict refs''. Symbolic
references are disallowed. See the perlref manpage.
- Can't use subscript on %s
-
(F) The compiler tried to interpret a bracketed expression as a
subscript. But to the left of the brackets was an expression that
didn't look like an array reference, or anything else subscriptable.
- Can't use \%c to mean $%c in expression
-
(W syntax) In an ordinary expression, backslash is a unary operator that
creates a reference to its argument. The use of backslash to indicate a
backreference to a matched substring is valid only as part of a regular
expression pattern. Trying to do this in ordinary Perl code produces a
value that prints out looking like SCALAR(0xdecaf). Use the $1 form
instead.
- Can't weaken a nonreference
-
(F) You attempted to weaken something that was not a reference. Only
references can be weakened.
- Can't x= to read-only value
-
(F) You tried to repeat a constant value (often the undefined value)
with an assignment operator, which implies modifying the value itself.
Perhaps you need to copy the value to a temporary, and repeat that.
chmod() mode argument is missing initial 0
-
(W chmod) A novice will sometimes say
chmod 777, $filename
not realizing that 777 will be interpreted as a decimal number,
equivalent to 01411. Octal constants are introduced with a leading 0 in
Perl, as in C.
close() on unopened filehandle %s
-
(W unopened) You tried to close a filehandle that was never opened.
- %s: Command not found
-
(A) You've accidentally run your script through csh instead of Perl.
Check the #! line, or manually feed your script into Perl yourself.
- Compilation failed in require
-
(F) Perl could not compile a file specified in a
require statement.
Perl uses this generic message when none of the errors that it
encountered were severe enough to halt compilation immediately.
- Complex regular subexpression recursion limit (%d) exceeded
-
(W regexp) The regular expression engine uses recursion in complex
situations where back-tracking is required. Recursion depth is limited
to 32766, or perhaps less in architectures where the stack cannot grow
arbitrarily. (``Simple'' and ``medium'' situations are handled without
recursion and are not subject to a limit.) Try shortening the string
under examination; looping in Perl code (e.g. with
while) rather than
in the regular expression engine; or rewriting the regular expression so
that it is simpler or backtracks less. (See the perlfaq2 manpage for information
on Mastering Regular Expressions.)
connect() on closed socket %s
-
(W closed) You tried to do a connect on a closed socket. Did you forget
to check the return value of your
socket() call? See
connect in the perlfunc manpage.
- Constant(%s)%s: %s
-
(F) The parser found inconsistencies either while attempting to define
an overloaded constant, or when trying to find the character name
specified in the
\N{...} escape. Perhaps you forgot to load the
corresponding overload or charnames pragma? See the charnames manpage and
the overload manpage.
- Constant is not %s reference
-
(F) A constant value (perhaps declared using the
use constant pragma)
is being dereferenced, but it amounts to the wrong type of reference.
The message indicates the type of reference that was expected. This
usually indicates a syntax error in dereferencing the constant value.
See Constant Functions in the perlsub manpage and the constant manpage.
- Constant subroutine %s redefined
-
(S|W redefine) You redefined a subroutine which had previously been
eligible for inlining. See Constant Functions in the perlsub manpage for
commentary and workarounds.
- Constant subroutine %s undefined
-
(W misc) You undefined a subroutine which had previously been eligible
for inlining. See Constant Functions in the perlsub manpage for commentary and
workarounds.
- Copy method did not return a reference
-
(F) The method which overloads ``='' is buggy. See
Copy Constructor in the overload manpage.
- CORE::%s is not a keyword
-
(F) The CORE:: namespace is reserved for Perl keywords.
- corrupted regexp pointers
-
(P) The regular expression engine got confused by what the regular
expression compiler gave it.
- corrupted regexp program
-
(P) The regular expression engine got passed a regexp program without a
valid magic number.
- Corrupt malloc ptr 0x%lx at 0x%lx
-
(P) The malloc package that comes with Perl had an internal failure.
-p destination: %s
-
(F) An error occurred during the implicit output invoked by the
-p
command-line switch. (This output goes to STDOUT unless you've
redirected it with select().)
-T and -B not implemented on filehandles
-
(F) Perl can't peek at the stdio buffer of filehandles when it doesn't
know about your kind of stdio. You'll have to use a filename instead.
- Deep recursion on subroutine ``%s''
-
(W recursion) This subroutine has called itself (directly or indirectly)
100 times more than it has returned. This probably indicates an
infinite recursion, unless you're writing strange benchmark programs, in
which case it indicates something else.
defined(@array) is deprecated
-
(D deprecated)
defined() is not usually useful on arrays because it
checks for an undefined scalar value. If you want to see if the
array is empty, just use if (@array) { # not empty } for example.
defined(%hash) is deprecated
-
(D deprecated)
defined() is not usually useful on hashes because it
checks for an undefined scalar value. If you want to see if the hash
is empty, just use if (%hash) { # not empty } for example.
- Delimiter for here document is too long
-
(F) In a here document construct like
<<FOO, the label FOO is too
long for Perl to handle. You have to be seriously twisted to write code
that triggers this error.
- Did not produce a valid header
-
See Server error.
- %s did not return a true value
-
(F) A required (or used) file must return a true value to indicate that
it compiled correctly and ran its initialization code correctly. It's
traditional to end such a file with a ``1;'', though any true value would
do. See require in the perlfunc manpage.
- (Did you mean &%s instead?)
-
(W) You probably referred to an imported subroutine &FOO as $FOO or some
such.
- (Did you mean ``local'' instead of ``our''?)
-
(W misc) Remember that ``our'' does not localize the declared global
variable. You have declared it again in the same lexical scope, which
seems superfluous.
- (Did you mean $ or @ instead of %?)
-
(W) You probably said %hash{$key} when you meant $hash{$key} or
@hash{@keys}. On the other hand, maybe you just meant %hash and got
carried away.
- Died
-
(F) You passed
die() an empty string (the equivalent of die "") or
you called it with no args and both $@ and $_ were empty.
- Document contains no data
-
See Server error.
- Don't know how to handle magic of type '%s'
-
(P) The internal handling of magical variables has been cursed.
- do_study: out of memory
-
(P) This should have been caught by
safemalloc() instead.
- (Do you need to predeclare %s?)
-
(S) This is an educated guess made in conjunction with the message ``%s
found where operator expected''. It often means a subroutine or module
name is being referenced that hasn't been declared yet. This may be
because of ordering problems in your file, or because of a missing
``sub'', ``package'', ``require'', or ``use'' statement. If you're referencing
something that isn't defined yet, you don't actually have to define the
subroutine or package before the current location. You can use an empty
``sub foo;'' or ``package FOO;'' to enter a ``forward'' declaration.
- Duplicate
free() ignored
-
(S malloc) An internal routine called
free() on something that had
already been freed.
- elseif should be elsif
-
(S) There is no keyword ``elseif'' in Perl because Larry thinks it's ugly.
Your code will be interpreted as an attempt to call a method named
``elseif'' for the class returned by the following block. This is
unlikely to be what you want.
- entering effective %s failed
-
(F) While under the
use filetest pragma, switching the real and
effective uids or gids failed.
- Error converting file specification %s
-
(F) An error peculiar to VMS. Because Perl may have to deal with file
specifications in either VMS or Unix syntax, it converts them to a
single form when it must operate on them directly. Either you've passed
an invalid file specification to Perl, or you've found a case the
conversion routines don't handle. Drat.
- %s: Eval-group in insecure regular expression
-
(F) Perl detected tainted data when trying to compile a regular
expression that contains the
(?{ ... }) zero-width assertion, which
is unsafe. See (?{ code }) in the perlre manpage, and the perlsec manpage.
- %s: Eval-group not allowed at run time
-
(F) Perl tried to compile a regular expression containing the
(?{ ... }) zero-width assertion at run time, as it would when the
pattern contains interpolated values. Since that is a security risk, it
is not allowed. If you insist, you may still do this by explicitly
building the pattern from an interpolated string at run time and using
that in an eval(). See (?{ code }) in the perlre manpage.
- %s: Eval-group not allowed, use re 'eval'
-
(F) A regular expression contained the
(?{ ... }) zero-width
assertion, but that construct is only allowed when the use re 'eval'
pragma is in effect. See (?{ code }) in the perlre manpage.
- Excessively long <> operator
-
(F) The contents of a <> operator may not exceed the maximum size of a
Perl identifier. If you're just trying to glob a long list of
filenames, try using the
glob() operator, or put the filenames into a
variable and glob that.
- Execution of %s aborted due to compilation errors
-
(F) The final summary message when a Perl compilation fails.
- Exiting eval via %s
-
(W exiting) You are exiting an eval by unconventional means, such as a
goto, or a loop control statement.
- Exiting format via %s
-
(W exiting) You are exiting an eval by unconventional means, such as a
goto, or a loop control statement.
- Exiting pseudo-block via %s
-
(W exiting) You are exiting a rather special block construct (like a
sort block or subroutine) by unconventional means, such as a goto, or a
loop control statement. See sort in the perlfunc manpage.
- Exiting subroutine via %s
-
(W exiting) You are exiting a subroutine by unconventional means, such
as a goto, or a loop control statement.
- Exiting substitution via %s
-
(W exiting) You are exiting a substitution by unconventional means, such
as a return, a goto, or a loop control statement.
- Explicit blessing to '' (assuming package main)
-
(W misc) You are blessing a reference to a zero length string. This has
the effect of blessing the reference into the package main. This is
usually not what you want. Consider providing a default target package,
e.g. bless($ref, $p || 'MyPackage');
- %s: Expression syntax
-
(A) You've accidentally run your script through csh instead of Perl.
Check the #! line, or manually feed your script into Perl yourself.
- %s failed--call queue aborted
-
(F) An untrapped exception was raised while executing a CHECK, INIT, or
END subroutine. Processing of the remainder of the queue of such
routines has been prematurely ended.
- false [] range ``%s'' in regexp
-
(W regexp) A character class range must start and end at a literal
character, not another character class like
\d or [:alpha:]. The
``-'' in your false range is interpreted as a literal ``-''. Consider
quoting the ``-'', ``\-''. See the perlre manpage.
- Fatal VMS error at %s, line %d
-
(P) An error peculiar to VMS. Something untoward happened in a VMS
system service or RTL routine; Perl's exit status should provide more
details. The filename in ``at %s'' and the line number in ``line %d'' tell
you which section of the Perl source code is distressed.
- fcntl is not implemented
-
(F) Your machine apparently doesn't implement fcntl(). What is this, a
PDP-11 or something?
- Filehandle %s opened only for input
-
(W io) You tried to write on a read-only filehandle. If you intended it
to be a read-write filehandle, you needed to open it with ``+<'' or ``+>''
or ``+>>'' instead of with ``<'' or nothing. If you intended only to write
the file, use ``>'' or ``>>''. See open in the perlfunc manpage.
- Filehandle %s opened only for output
-
(W io) You tried to read from a filehandle opened only for writing. If
you intended it to be a read/write filehandle, you needed to open it
with ``+<'' or ``+>'' or ``+>>'' instead of with ``<'' or nothing. If you
intended only to read from the file, use ``<''. See open in the perlfunc manpage.
- Final $ should be \$ or $name
-
(F) You must now decide whether the final $ in a string was meant to be
a literal dollar sign, or was meant to introduce a variable name that
happens to be missing. So you have to put either the backslash or the
name.
- Final @ should be \@ or @name
-
(F) You must now decide whether the final @ in a string was meant to be
a literal ``at'' sign, or was meant to introduce a variable name that
happens to be missing. So you have to put either the backslash or the
name.
flock() on closed filehandle %s
-
(W closed) The filehandle you're attempting to
flock() got itself closed
some time before now. Check your logic flow. flock() operates on
filehandles. Are you attempting to call flock() on a dirhandle by the
same name?
- Quantifier follows nothing before << HERE in regex m/%s/
-
(F) You started a regular expression with a quantifier. Backslash it if you
meant it literally. The << HERE shows in the regular expression about where the
problem was discovered. See the perlre manpage.
- Format not terminated
-
(F) A format must be terminated by a line with a solitary dot. Perl got
to the end of your file without finding such a line.
- Format %s redefined
-
(W redefine) You redefined a format. To suppress this warning, say
{
no warnings;
eval "format NAME =...";
}
- Found = in conditional, should be ==
-
(W syntax) You said
if ($foo = 123)
when you meant
if ($foo == 123)
(or something like that).
- %s found where operator expected
-
(S) The Perl lexer knows whether to expect a term or an operator. If it
sees what it knows to be a term when it was expecting to see an
operator, it gives you this warning. Usually it indicates that an
operator or delimiter was omitted, such as a semicolon.
- gdbm store returned %d, errno %d, key ``%s''
-
(S) A warning from the GDBM_File extension that a store failed.
- gethostent not implemented
-
(F) Your C library apparently doesn't implement gethostent(), probably
because if it did, it'd feel morally obligated to return every hostname
on the Internet.
- get%sname() on closed socket %s
-
(W closed) You tried to get a socket or peer socket name on a closed
socket. Did you forget to check the return value of your
socket() call?
- getpwnam returned invalid UIC %#o for user ``%s''
-
(S) A warning peculiar to VMS. The call to
sys$getuai underlying the
getpwnam operator returned an invalid UIC.
getsockopt() on closed socket %s
-
(W closed) You tried to get a socket option on a closed socket. Did you
forget to check the return value of your
socket() call? See
getsockopt in the perlfunc manpage.
- Global symbol ``%s'' requires explicit package name
-
(F) You've said ``use strict vars'', which indicates that all variables
must either be lexically scoped (using ``my''), declared beforehand using
``our'', or explicitly qualified to say which package the global variable
is in (using ``::'').
- glob failed (%s)
-
(W glob) Something went wrong with the external
program(s) used for
glob and <*.c>. Usually, this means that you supplied a
glob pattern that caused the external program to fail and exit with a
nonzero status. If the message indicates that the abnormal exit
resulted in a coredump, this may also mean that your csh (C shell) is
broken. If so, you should change all of the csh-related variables in
config.sh: If you have tcsh, make the variables refer to it as if it
were csh (e.g. full_csh='/usr/bin/tcsh'); otherwise, make them all
empty (except that d_csh should be 'undef') so that Perl will
think csh is missing. In either case, after editing config.sh, run
./Configure -S and rebuild Perl.
- Glob not terminated
-
(F) The lexer saw a left angle bracket in a place where it was expecting
a term, so it's looking for the corresponding right angle bracket, and
not finding it. Chances are you left some needed parentheses out
earlier in the line, and you really meant a ``less than''.
- Got an error from DosAllocMem
-
(P) An error peculiar to OS/2. Most probably you're using an obsolete
version of Perl, and this should not happen anyway.
- goto must have label
-
(F) Unlike with ``next'' or ``last'', you're not allowed to goto an
unspecified destination. See goto in the perlfunc manpage.
- %s had compilation errors
-
(F) The final summary message when a
perl -c fails.
- Had to create %s unexpectedly
-
(S internal) A routine asked for a symbol from a symbol table that ought
to have existed already, but for some reason it didn't, and had to be
created on an emergency basis to prevent a core dump.
- Hash %%s missing the % in argument %d of %s()
-
(D deprecated) Really old Perl let you omit the % on hash names in some
spots. This is now heavily deprecated.
- %s has too many errors
-
(F) The parser has given up trying to parse the program after 10 errors.
Further error messages would likely be uninformative.
- Hexadecimal number > 0xffffffff non-portable
-
(W portable) The hexadecimal number you specified is larger than 2**32-1
(4294967295) and therefore non-portable between systems. See
the perlport manpage for more on portability concerns.
- Identifier too long
-
(F) Perl limits identifiers (names for variables, functions, etc.) to
about 250 characters for simple names, and somewhat more for compound
names (like
$A::B). You've exceeded Perl's limits. Future versions
of Perl are likely to eliminate these arbitrary limitations.
- Illegal binary digit %s
-
(F) You used a digit other than 0 or 1 in a binary number.
- Illegal binary digit %s ignored
-
(W digit) You may have tried to use a digit other than 0 or 1 in a
binary number. Interpretation of the binary number stopped before the
offending digit.
- Illegal character %s (carriage return)
-
(F) Perl normally treats carriage returns in the program text as it
would any other whitespace, which means you should never see this error
when Perl was built using standard options. For some reason, your
version of Perl appears to have been built without this support. Talk
to your Perl administrator.
- Illegal division by zero
-
(F) You tried to divide a number by 0. Either something was wrong in
your logic, or you need to put a conditional in to guard against
meaningless input.
- Illegal hexadecimal digit %s ignored
-
(W digit) You may have tried to use a character other than 0 - 9 or
A - F, a - f in a hexadecimal number. Interpretation of the hexadecimal
number stopped before the illegal character.
- Illegal modulus zero
-
(F) You tried to divide a number by 0 to get the remainder. Most
numbers don't take to this kindly.
- Illegal number of bits in vec
-
(F) The number of bits in
vec() (the third argument) must be a power of
two from 1 to 32 (or 64, if your platform supports that).
- Illegal octal digit %s
-
(F) You used an 8 or 9 in a octal number.
- Illegal octal digit %s ignored
-
(W digit) You may have tried to use an 8 or 9 in a octal number.
Interpretation of the octal number stopped before the 8 or 9.
- Illegal switch in PERL5OPT: %s
-
(X) The PERL5OPT environment variable may only be used to set the
following switches: -[DIMUdmw].
- Ill-formed CRTL environ value ``%s''
-
(W internal) A warning peculiar to VMS. Perl tried to read the CRTL's
internal environ array, and encountered an element without the
=
delimiter used to separate keys from values. The element is ignored.
- Ill-formed message in prime_env_iter: |%s|
-
(W internal) A warning peculiar to VMS. Perl tried to read a logical
name or CLI symbol definition when preparing to iterate over %ENV, and
didn't see the expected delimiter between key and value, so the line was
ignored.
- (in cleanup) %s
-
(W misc) This prefix usually indicates that a
DESTROY() method raised
the indicated exception. Since destructors are usually called by the
system at arbitrary points during execution, and often a vast number of
times, the warning is issued only once for any number of failures that
would otherwise result in the same message being repeated.
Failure of user callbacks dispatched using the G_KEEPERR flag could
also result in this warning. See G_KEEPERR in the perlcall manpage.
- Insecure dependency in %s
-
(F) You tried to do something that the tainting mechanism didn't like.
The tainting mechanism is turned on when you're running setuid or
setgid, or when you specify -T to turn it on explicitly. The
tainting mechanism labels all data that's derived directly or indirectly
from the user, who is considered to be unworthy of your trust. If any
such data is used in a ``dangerous'' operation, you get this error. See
the perlsec manpage for more information.
- Insecure directory in %s
-
(F) You can't use system(), exec(), or a piped open in a setuid or
setgid script if
$ENV{PATH} contains a directory that is writable by
the world. See the perlsec manpage.
- Insecure $ENV{%s} while running %s
-
(F) You can't use system(), exec(), or a piped open in a setuid or
setgid script if any of
$ENV{PATH}, $ENV{IFS}, $ENV{CDPATH},
$ENV{ENV} or $ENV{BASH_ENV} are derived from data supplied (or
potentially supplied) by the user. The script must set the path to a
known value, using trustworthy data. See the perlsec manpage.
- Integer overflow in %s number
-
(W overflow) The hexadecimal, octal or binary number you have specified
either as a literal or as an argument to
hex() or oct() is too big for
your architecture, and has been converted to a floating point number.
On a 32-bit architecture the largest hexadecimal, octal or binary number
representable without overflow is 0xFFFFFFFF, 037777777777, or
0b11111111111111111111111111111111 respectively. Note that Perl
transparently promotes all numbers to a floating point representation
internally--subject to loss of precision errors in subsequent
operations.
- Internal disaster before << HERE in regex m/%s/
-
(P) Something went badly wrong in the regular expression parser.
The << HERE shows in the regular expression about where the problem was
discovered.
- Internal inconsistency in tracking vforks
-
(S) A warning peculiar to VMS. Perl keeps track of the number of times
you've called
fork and exec, to determine whether the current call
to exec should affect the current script or a subprocess (see
exec LIST in the perlvms manpage). Somehow, this count has become scrambled, so
Perl is making a guess and treating this exec as a request to
terminate the Perl script and execute the specified command.
- Internal urp before << HERE in regex m/%s/
-
(P) Something went badly awry in the regular expression parser. The <<<HERE
shows in the regular expression about where the problem was discovered.
- %s (...) interpreted as function
-
(W syntax) You've run afoul of the rule that says that any list operator
followed by parentheses turns into a function, with all the list
operators arguments found inside the parentheses. See
Terms and List Operators (Leftward) in the perlop manpage.
- Invalid %s attribute: %s
-
The indicated attribute for a subroutine or variable was not recognized
by Perl or by a user-supplied handler. See the attributes manpage.
- Invalid %s attributes: %s
-
The indicated attributes for a subroutine or variable were not
recognized by Perl or by a user-supplied handler. See the attributes manpage.
- Invalid conversion in %s: ``%s''
-
(W printf) Perl does not understand the given format conversion. See
sprintf in the perlfunc manpage.
- invalid [] range ``%s'' in regexp
-
(F) The range specified in a character class had a minimum character
greater than the maximum character. See the perlre manpage.
- Invalid separator character %s in attribute list
-
(F) Something other than a colon or whitespace was seen between the
elements of an attribute list. If the previous attribute had a
parenthesised parameter list, perhaps that list was terminated too soon.
See the attributes manpage.
- Invalid type in pack: '%s'
-
(F) The given character is not a valid pack type. See pack in the perlfunc manpage.
(W pack) The given character is not a valid pack type but used to be
silently ignored.
- Invalid type in unpack: '%s'
-
(F) The given character is not a valid unpack type. See
unpack in the perlfunc manpage.
(W unpack) The given character is not a valid unpack type but used to be
silently ignored.
- ioctl is not implemented
-
(F) Your machine apparently doesn't implement ioctl(), which is pretty
strange for a machine that supports C.
- `%s' is not a code reference
-
(W) The second (fourth, sixth, ...) argument of overload::constant needs
to be a code reference. Either an anonymous subroutine, or a reference
to a subroutine.
- `%s' is not an overloadable type
-
(W) You tried to overload a constant type the overload package is unaware of.
- junk on end of regexp
-
(P) The regular expression parser is confused.
- Label not found for ``last %s''
-
(F) You named a loop to break out of, but you're not currently in a loop
of that name, not even if you count where you were called from. See
last in the perlfunc manpage.
- Label not found for ``next %s''
-
(F) You named a loop to continue, but you're not currently in a loop of
that name, not even if you count where you were called from. See
last in the perlfunc manpage.
- Label not found for ``redo %s''
-
(F) You named a loop to restart, but you're not currently in a loop of
that name, not even if you count where you were called from. See
last in the perlfunc manpage.
- leaving effective %s failed
-
(F) While under the
use filetest pragma, switching the real and
effective uids or gids failed.
listen() on closed socket %s
-
(W closed) You tried to do a listen on a closed socket. Did you forget
to check the return value of your
socket() call? See
listen in the perlfunc manpage.
- Lookbehind longer than %d not implemented at {#} mark in regex %s
-
There is an upper limit to the depth of lookbehind in the (?<=
regular expression construct.
- Lvalue subs returning %s not implemented yet
-
(F) Due to limitations in the current implementation, array and hash
values cannot be returned in subroutines used in lvalue context. See
Lvalue subroutines in the perlsub manpage.
- Lookbehind longer than %d not implemented before << HERE %s
-
(F) There is currently a limit on the length of string which lookbehind can
handle. This restriction may be eased in a future release. The << HERE shows in
the regular expression about where the problem was discovered.
- Malformed PERLLIB_PREFIX
-
(F) An error peculiar to OS/2. PERLLIB_PREFIX should be of the form
prefix1;prefix2
or
prefix1 prefix2
with nonempty prefix1 and prefix2. If prefix1 is indeed a prefix of
a builtin library search path, prefix2 is substituted. The error may
appear if components are not found, or are too long. See
``PERLLIB_PREFIX'' in the perlos2 manpage.
- Malformed UTF-8 character (%s)
-
Perl detected something that didn't comply with UTF-8 encoding rules.
- Malformed UTF-16 surrogate
-
Perl thought it was reading UTF-16 encoded character data but while
doing it Perl met a malformed Unicode surrogate.
- %s matches null string many times
-
(W regexp) The pattern you've specified would be an infinite loop if the
regular expression engine didn't specifically check for that. See
the perlre manpage.
- % may only be used in unpack
-
(F) You can't pack a string by supplying a checksum, because the
checksumming process loses information, and you can't go the other way.
See unpack in the perlfunc manpage.
- Method for operation %s not found in package %s during blessing
-
(F) An attempt was made to specify an entry in an overloading table that
doesn't resolve to a valid subroutine. See the overload manpage.
- Method %s not permitted
-
See Server error.
- Might be a runaway multi-line %s string starting on line %d
-
(S) An advisory indicating that the previous error may have been caused
by a missing delimiter on a string or pattern, because it eventually
ended earlier on the current line.
- Misplaced _ in number
-
(W syntax) An underline in a decimal constant wasn't on a 3-digit boundary.
- Missing %sbrace%s on \N{}
-
(F) Wrong syntax of character name literal
\N{charname} within
double-quotish context.
- Missing comma after first argument to %s function
-
(F) While certain functions allow you to specify a filehandle or an
``indirect object'' before the argument list, this ain't one of them.
- Missing command in piped open
-
(W pipe) You used the
open(FH, "| command") or
open(FH, "command |") construction, but the command was missing or
blank.
- Missing name in ``my sub''
-
(F) The reserved syntax for lexically scoped subroutines requires that
they have a name with which they can be found.
- Missing $ on loop variable
-
(F) Apparently you've been programming in csh too much. Variables
are always mentioned with the $ in Perl, unlike in the shells, where it
can vary from one line to the next.
- (Missing operator before %s?)
-
(S) This is an educated guess made in conjunction with the message ``%s
found where operator expected''. Often the missing operator is a comma.
- Missing right curly or square bracket
-
(F) The lexer counted more opening curly or square brackets than closing
ones. As a general rule, you'll find it's missing near the place you
were last editing.
- (Missing semicolon on previous line?)
-
(S) This is an educated guess made in conjunction with the message ``%s
found where operator expected''. Don't automatically put a semicolon on
the previous line just because you saw this message.
- Modification of a read-only value attempted
-
(F) You tried, directly or indirectly, to change the value of a
constant. You didn't, of course, try ``2 = 1'', because the compiler
catches that. But an easy way to do the same thing is:
sub mod { $_[0] = 1 }
mod(2);
Another way is to assign to a substr() that's off the end of the string.
Yet another way is to assign to a foreach loop VAR when VAR
is aliased to a constant in the look LIST:
$x = 1;
foreach my $n ($x, 2) {
$n *= 2; # modifies the $x, but fails on attempt to modify the 2
}
- Modification of non-creatable array value attempted, %s
-
(F) You tried to make an array value spring into existence, and the
subscript was probably negative, even counting from end of the array
backwards.
- Modification of non-creatable hash value attempted, %s
-
(P) You tried to make a hash value spring into existence, and it
couldn't be created for some peculiar reason.
- Module name must be constant
-
(F) Only a bare module name is allowed as the first argument to a ``use''.
- Module name required with -%c option
-
(F) The
-M or -m options say that Perl should load some module, but
you omitted the name of the module. Consult the perlrun manpage for full details
about -M and -m.
- msg%s not implemented
-
(F) You don't have System V message IPC on your system.
- Multidimensional syntax %s not supported
-
(W syntax) Multidimensional arrays aren't written like
$foo[1,2,3].
They're written like $foo[1][2][3], as in C.
- / must be followed by a*, A* or Z*
-
(F) You had a pack template indicating a counted-length string,
Currently the only things that can have their length counted are a*, A*
or Z*. See pack in the perlfunc manpage.
- / must be followed by a, A or Z
-
(F) You had an unpack template indicating a counted-length string, which
must be followed by one of the letters a, A or Z to indicate what sort
of string is to be unpacked. See pack in the perlfunc manpage.
- / must follow a numeric type
-
(F) You had an unpack template that contained a '#', but this did not
follow some numeric unpack specification. See pack in the perlfunc manpage.
- ``my sub'' not yet implemented
-
(F) Lexically scoped subroutines are not yet implemented. Don't try
that yet.
- ``my'' variable %s can't be in a package
-
(F) Lexically scoped variables aren't in a package, so it doesn't make
sense to try to declare one with a package qualifier on the front. Use
local() if you want to localize a package variable.
- Name ``%s::%s'' used only once: possible typo
-
(W once) Typographical errors often show up as unique variable names.
If you had a good reason for having a unique name, then just mention it
again somehow to suppress the message. The
our declaration is
provided for this purpose.
- Negative length
-
(F) You tried to do a read/write/send/recv operation with a buffer
length that is less than 0. This is difficult to imagine.
- Nested quantifiers before << HERE in regex m/%s/
-
(F) You can't quantify a quantifier without intervening parentheses. So
things like ** or +* or ?* are illegal. The << HERE shows in the regular
expression about where the problem was discovered.
Note, however, that the minimal matching quantifiers, *?, +?, and
?? appear to be nested quantifiers, but aren't. See the perlre manpage.
- %s never introduced
-
(S internal) The symbol in question was declared but somehow went out of
scope before it could possibly have been used.
- No %s allowed while running setuid
-
(F) Certain operations are deemed to be too insecure for a setuid or
setgid script to even be allowed to attempt. Generally speaking there
will be another way to do what you want that is, if not secure, at least
securable. See the perlsec manpage.
- No -e allowed in setuid scripts
-
(F) A setuid script can't be specified by the user.
- No comma allowed after %s
-
(F) A list operator that has a filehandle or ``indirect object'' is not
allowed to have a comma between that and the following arguments.
Otherwise it'd be just another one of the arguments.
One possible cause for this is that you expected to have imported a
constant to your name space with use or import while no such
importing took place, it may for example be that your operating system
does not support that particular constant. Hopefully you did use an
explicit import list for the constants you expect to see, please see
use in the perlfunc manpage and import in the perlfunc manpage. While an explicit import list
would probably have caught this error earlier it naturally does not
remedy the fact that your operating system still does not support that
constant. Maybe you have a typo in the constants of the symbol import
list of use or import or in the constant name at the line where
this error was triggered?
- No command into which to pipe on command line
-
(F) An error peculiar to VMS. Perl handles its own command line
redirection, and found a '|' at the end of the command line, so it
doesn't know where you want to pipe the output from this command.
- No DB::DB routine defined
-
(F) The currently executing code was compiled with the -d switch, but
for some reason the perl5db.pl file (or some facsimile thereof) didn't
define a routine to be called at the beginning of each statement. Which
is odd, because the file should have been required automatically, and
should have blown up the require if it didn't parse right.
- No dbm on this machine
-
(P) This is counted as an internal error, because every machine should
supply dbm nowadays, because Perl comes with SDBM. See the SDBM_File manpage.
- No DBsub routine
-
(F) The currently executing code was compiled with the -d switch,
but for some reason the perl5db.pl file (or some facsimile thereof)
didn't define a DB::sub routine to be called at the beginning of each
ordinary subroutine call.
- No error file after 2> or 2>> on command line
-
(F) An error peculiar to VMS. Perl handles its own command line
redirection, and found a '2>' or a '2>>' on the command line, but can't
find the name of the file to which to write data destined for stderr.
- No input file after < on command line
-
(F) An error peculiar to VMS. Perl handles its own command line
redirection, and found a '<' on the command line, but can't find the
name of the file from which to read data for stdin.
- No #! line
-
(F) The setuid emulator requires that scripts have a well-formed #! line
even on machines that don't support the #! construct.
- ``no'' not allowed in expression
-
(F) The ``no'' keyword is recognized and executed at compile time, and
returns no useful value. See the perlmod manpage.
- No output file after > on command line
-
(F) An error peculiar to VMS. Perl handles its own command line
redirection, and found a lone '>' at the end of the command line, so it
doesn't know where you wanted to redirect stdout.
- No output file after > or >> on command line
-
(F) An error peculiar to VMS. Perl handles its own command line
redirection, and found a '>' or a '>>' on the command line, but can't
find the name of the file to which to write data destined for stdout.
- No package name allowed for variable %s in ``our''
-
(F) Fully qualified variable names are not allowed in ``our''
declarations, because that doesn't make much sense under existing
semantics. Such syntax is reserved for future extensions.
- No Perl script found in input
-
(F) You called
perl -x, but no line was found in the file beginning
with #! and containing the word ``perl''.
- No setregid available
-
(F) Configure didn't find anything resembling the
setregid() call for
your system.
- No setreuid available
-
(F) Configure didn't find anything resembling the
setreuid() call for
your system.
- No space allowed after -%c
-
(F) The argument to the indicated command line switch must follow
immediately after the switch, without intervening spaces.
- No %s specified for -%c
-
(F) The indicated command line switch needs a mandatory argument, but
you haven't specified one.
- No such pipe open
-
(P) An error peculiar to VMS. The internal routine
my_pclose() tried to
close a pipe which hadn't been opened. This should have been caught
earlier as an attempt to close an unopened filehandle.
- No such pseudo-hash field ``%s''
-
(F) You tried to access an array as a hash, but the field name used is
not defined. The hash at index 0 should map all valid field names to
array indices for that to work.
- No such pseudo-hash field ``%s'' in variable %s of type %s
-
(F) You tried to access a field of a typed variable where the type does
not know about the field name. The field names are looked up in the
%FIELDS hash in the type package at compile time. The %FIELDS hash is
%usually set up with the 'fields' pragma.
- No such signal: SIG%s
-
(W signal) You specified a signal name as a subscript to %SIG that was
not recognized. Say
kill -l in your shell to see the valid signal
names on your system.
- Not a CODE reference
-
(F) Perl was trying to evaluate a reference to a code value (that is, a
subroutine), but found a reference to something else instead. You can
use the
ref() function to find out what kind of ref it really was. See
also the perlref manpage.
- Not a format reference
-
(F) I'm not sure how you managed to generate a reference to an anonymous
format, but this indicates you did, and that it didn't exist.
- Not a GLOB reference
-
(F) Perl was trying to evaluate a reference to a ``typeglob'' (that is, a
symbol table entry that looks like
*foo), but found a reference to
something else instead. You can use the ref() function to find out what
kind of ref it really was. See the perlref manpage.
- Not a HASH reference
-
(F) Perl was trying to evaluate a reference to a hash value, but found a
reference to something else instead. You can use the
ref() function to
find out what kind of ref it really was. See the perlref manpage.
- Not an ARRAY reference
-
(F) Perl was trying to evaluate a reference to an array value, but found
a reference to something else instead. You can use the
ref() function
to find out what kind of ref it really was. See the perlref manpage.
- Not a perl script
-
(F) The setuid emulator requires that scripts have a well-formed #! line
even on machines that don't support the #! construct. The line must
mention perl.
- Not a SCALAR reference
-
(F) Perl was trying to evaluate a reference to a scalar value, but found
a reference to something else instead. You can use the
ref() function
to find out what kind of ref it really was. See the perlref manpage.
- Not a subroutine reference
-
(F) Perl was trying to evaluate a reference to a code value (that is, a
subroutine), but found a reference to something else instead. You can
use the
ref() function to find out what kind of ref it really was. See
also the perlref manpage.
- Not a subroutine reference in overload table
-
(F) An attempt was made to specify an entry in an overloading table that
doesn't somehow point to a valid subroutine. See the overload manpage.
- Not enough arguments for %s
-
(F) The function requires more arguments than you specified.
- Not enough format arguments
-
(W syntax) A format specified more picture fields than the next line
supplied. See the perlform manpage.
- %s: not found
-
(A) You've accidentally run your script through the Bourne shell instead
of Perl. Check the #! line, or manually feed your script into Perl
yourself.
- no UTC offset information; assuming local time is UTC
-
(S) A warning peculiar to VMS. Perl was unable to find the local
timezone offset, so it's assuming that local system time is equivalent
to UTC. If it's not, define the logical name
SYS$TIMEZONE_DIFFERENTIAL to translate to the number of seconds which
need to be added to UTC to get local time.
- Null filename used
-
(F) You can't require the null filename, especially because on many
machines that means the current directory! See require in the perlfunc manpage.
- NULL OP IN RUN
-
(P debugging) Some internal routine called
run() with a null opcode
pointer.
- Null picture in formline
-
(F) The first argument to formline must be a valid format picture
specification. It was found to be empty, which probably means you
supplied it an uninitialized value. See the perlform manpage.
- Null realloc
-
(P) An attempt was made to realloc NULL.
- NULL regexp argument
-
(P) The internal pattern matching routines blew it big time.
- NULL regexp parameter
-
(P) The internal pattern matching routines are out of their gourd.
- Number too long
-
(F) Perl limits the representation of decimal numbers in programs to
about about 250 characters. You've exceeded that length. Future
versions of Perl are likely to eliminate this arbitrary limitation. In
the meantime, try using scientific notation (e.g. ``1e6'' instead of
``1_000_000'').
- Octal number in vector unsupported
-
(F) Numbers with a leading
0 are not currently allowed in vectors.
The octal number interpretation of such numbers may be supported in a
future version.
- Octal number > 037777777777 non-portable
-
(W portable) The octal number you specified is larger than 2**32-1
(4294967295) and therefore non-portable between systems. See
the perlport manpage for more on portability concerns.
See also the perlport manpage for writing portable code.
- Odd number of arguments for overload::constant
-
(W) The call to overload::constant contained an odd number of arguments.
The arguments should come in pairs.
- Odd number of elements in hash assignment
-
(W misc) You specified an odd number of elements to initialize a hash,
which is odd, because hashes come in key/value pairs.
- Offset outside string
-
(F) You tried to do a read/write/send/recv operation with an offset
pointing outside the buffer. This is difficult to imagine. The sole
exception to this is that
sysread()ing past the buffer will extend
the buffer and zero pad the new area.
- -%s on unopened filehandle %s
-
(W unopened) You tried to invoke a file test operator on a filehandle
that isn't open. Check your logic. See also -X in the perlfunc manpage.
- %s() on unopened %s %s
-
(W unopened) An I/O operation was attempted on a filehandle that was
never initialized. You need to do an open(), a sysopen(), or a
socket()
call, or call a constructor from the FileHandle package.
- oops: oopsAV
-
(S internal) An internal warning that the grammar is screwed up.
- oops: oopsHV
-
(S internal) An internal warning that the grammar is screwed up.
- Operation `%s': no method found, %s
-
(F) An attempt was made to perform an overloaded operation for which no
handler was defined. While some handlers can be autogenerated in terms
of other handlers, there is no default handler for any operation, unless
fallback overloading key is specified to be true. See the overload manpage.
- Operator or semicolon missing before %s
-
(S ambiguous) You used a variable or subroutine call where the parser
was expecting an operator. The parser has assumed you really meant to
use an operator, but this is highly likely to be incorrect. For
example, if you say ``*foo *foo'' it will be interpreted as if you said
``*foo * 'foo'''.
- ``our'' variable %s redeclared
-
(W misc) You seem to have already declared the same global once before
in the current lexical scope.
- Out of memory!
-
(X) The
malloc() function returned 0, indicating there was insufficient
remaining memory (or virtual memory) to satisfy the request. Perl has
no option but to exit immediately.
- Out of memory during ``large'' request for %s
-
(F) The
malloc() function returned 0, indicating there was insufficient
remaining memory (or virtual memory) to satisfy the request. However,
the request was judged large enough (compile-time default is 64K), so a
possibility to shut down by trapping this error is granted.
- Out of memory during request for %s
-
(X|F) The
malloc() function returned 0, indicating there was
insufficient remaining memory (or virtual memory) to satisfy the
request.
The request was judged to be small, so the possibility to trap it
depends on the way perl was compiled. By default it is not trappable.
However, if compiled for this, Perl may use the contents of $^M as an
emergency pool after die()ing with this message. In this case the error
is trappable once, and the error message will include the line and file
where the failed request happened.
- Out of memory during ridiculously large request
-
(F) You can't allocate more than 2^31+``small amount'' bytes. This error
is most likely to be caused by a typo in the Perl program. e.g.,
$arr[time] instead of $arr[$time].
- Out of memory for yacc stack
-
(F) The yacc parser wanted to grow its stack so it could continue
parsing, but
realloc() wouldn't give it more memory, virtual or
otherwise.
- @ outside of string
-
(F) You had a pack template that specified an absolute position outside
the string being unpacked. See pack in the perlfunc manpage.
- %s package attribute may clash with future reserved word: %s
-
(W reserved) A lowercase attribute name was used that had a
package-specific handler. That name might have a meaning to Perl itself
some day, even though it doesn't yet. Perhaps you should use a
mixed-case attribute name, instead. See the attributes manpage.
- page overflow
-
(W io) A single call to
write() produced more lines than can fit on a
page. See the perlform manpage.
- panic: %s
-
(P) An internal error.
- panic: ck_grep
-
(P) Failed an internal consistency check trying to compile a grep.
- panic: ck_split
-
(P) Failed an internal consistency check trying to compile a split.
- panic: corrupt saved stack index
-
(P) The savestack was requested to restore more localized values than
there are in the savestack.
- panic: del_backref
-
(P) Failed an internal consistency check while trying to reset a weak
reference.
- panic: die %s
-
(P) We popped the context stack to an eval context, and then discovered
it wasn't an eval context.
- panic: pp_match
-
(P) The internal
pp_match() routine was called with invalid operational
data.
- panic: do_subst
-
(P) The internal
pp_subst() routine was called with invalid operational
data.
- panic: do_trans_%s
-
(P) The internal do_trans routines were called with invalid operational
data.
- panic: frexp
-
(P) The library function
frexp() failed, making printf(``%f'') impossible.
- panic: goto
-
(P) We popped the context stack to a context with the specified label,
and then discovered it wasn't a context we know how to do a goto in.
- panic: INTERPCASEMOD