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Editorial Team
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Asked: 2026-05-27T20:58:57+00:00

On a certain system, I am running a perl script and it’s failing by

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On a certain system, I am running a perl script and it’s failing by saying

Can't locate List/Util.pm in @INC (@INC contains: <Some-Path>/ActiveState/perl/lib <Some-Path>/ActiveState/perl/site/lib .) at <Some-Other-Path>\searchCobolPgms.ps line 7.

Now the strange part is that before deploying the code into the failing system, I ran it on my laptop and it just ran fine. The difference in both the system is, in my laptop I am using Cygwin and perl is bundled with it and the said failing system has ActiveState perl.

<Some-Path>perl -v

This is perl, v5.6.1 built for MSWin32-x86-multi-thread
(with 1 registered patch, see perl -V for more detail)

Copyright 1987-2001, Larry Wall

Binary build 635 provided by ActiveState Corp. http://www.ActiveState.com
Built 15:34:21 Feb  4 2003


Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using `man perl' or `perldoc perl'.  If you have access to the
Internet, point your browser at http://www.perl.com/, the Perl Home Page.

I then searched for Util under the lib of cygwin and it was present under i686-cygwin

c:\cygwin\lib\perl5\5.10>find . -name Util.pm
./CGI/Util.pm
./i686-cygwin/Hash/Util.pm
./i686-cygwin/List/Util.pm
./i686-cygwin/Scalar/Util.pm

So now I am confused. Isn;t List::Util part of the standard perl distribution?
The Reason for my confusion

  1. List/Util.pm is present under i686-cygwin
  2. ActiveSync Installation was not having List/Util.pm
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1 Answer

  1. Editorial Team

    List::Util was only added to core in 5.7 (a development version) and the first stable release of perl containing List::Util was 5.8.0. So, while it is in the perl 5.10 distro you have installed under cygwin, the perl 5.6.1 ActiveState executable you called does not have it. You should update the ActiveState perl to at least 5.8.0, and then it will have the module you need.

    Here is a link to find all versions of perl that contain a core module: http://perlpunks.de/corelist/version?module=List%3A%3AUtil

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