Kwalitee Issues


Take a look at the META.yml Spec at (for version 1.4) or (for version 2), and change your META.yml accordingly.

Error: Expected a list structure (author) [Validation: 1.3];Missing mandatory field, 'abstract' (abstract) [Validation: 1.3];value is an undefined string (abstract) [Validation: 1.3]


Upgrade the bundled version of Module::Install to at least 0.89, but preferably to the most current release. Alternatively, you can switch to another build system / installer that does not suffer from this problem. (ExtUtils::MakeMaker, Module::Build both of which have their own set of problems.)


List all used modules in META.yml requires


  • Tk


Split the distribution, or fix the version numbers to make them consistent (use the highest version number to avoid version downgrade).

Error: 0.60,0.61,0.65


Add a META.json to the distribution. Your buildtool should be able to autogenerate it.


If you are using Build.PL define the {requires}{perl} = VERSION field. If you are using MakeMaker (Makefile.PL) you should upgrade ExtUtils::MakeMaker to 6.48 and use MIN_PERL_VERSION parameter. Perl::MinimumVersion can help you determine which version of Perl your module needs.


Add 'use warnings' (or its equivalents) to all modules (this will require perl > 5.6), or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.

Error: Games::Worms, Games::Worms::Base, Games::Worms::Beeler, Games::Worms::Board, Games::Worms::Node, Games::Worms::PS, Games::Worms::PS::Board, Games::Worms::PS::Seg, Games::Worms::Random, Games::Worms::Random2, Games::Worms::Seg, Games::Worms::Tek4010, Games::Worms::Tek4010::Board, Games::Worms::Tek4010::Seg, Games::Worms::Tk, Games::Worms::Tk::Board, Games::Worms::Tk::Seg


List all modules used in the test suite in META.yml build_requires


  • Test
  • Test::More


This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.


Add all modules contained in this distribution to the META.yml field 'provides'. Module::Build or Dist::Zilla::Plugin::MetaProvides do this automatically for you.


Add a 'repository' resource to the META.yml via 'meta_add' accessor (for Module::Build) or META_ADD parameter (for ExtUtils::MakeMaker).


Name Abstract Version View
Games::Worms alife simulator for Conway/Patterson/Beeler worms, etc. 0.65 metacpan
Games::Worms::Base base class for worms 0.60 metacpan
Games::Worms::Beeler class for Conway/Patterson/Beeler worms 0.60 metacpan
Games::Worms::Board 0.60 metacpan
Games::Worms::Node 0.60 metacpan
Games::Worms::PS 0.60 metacpan
Games::Worms::PS::Board 0.60 metacpan
Games::Worms::PS::Seg 0.60 metacpan
Games::Worms::Random random worms 0.60 metacpan
Games::Worms::Random2 class for consistent random worms 0.60 metacpan
Games::Worms::Seg 0.60 metacpan
Games::Worms::Tek4010 0.60 metacpan
Games::Worms::Tek4010::Board 0.60 metacpan
Games::Worms::Tek4010::Seg 0.60 metacpan
Games::Worms::Tk 0.61 metacpan
Games::Worms::Tk::Board 0.60 metacpan
Games::Worms::Tk::Seg 0.60 metacpan


Name File View
Nullius lib/Games/Worms/ metacpan

Other Files

ChangeLog metacpan
MANIFEST metacpan
META.yml metacpan
Makefile.PL metacpan
README metacpan