Kwalitee Issues


Add a README to the distribution. It should contain a quick description of your module and how to install it.


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];License '<undef>' is invalid (license) [Validation: 1.3];Missing mandatory field, 'abstract' (abstract) [Validation: 1.3];Missing mandatory field, 'author' (author) [Validation: 1.3];Missing mandatory field, 'license' (license) [Validation: 1.3];value is an undefined string (abstract) [Validation: 1.3]


Remove the POD errors. You can check for POD errors automatically by including Test::Pod to your test suite.

Error: Geo-CountryFlags-1.01/lib/Geo/CountryFlags/ -- Around line 267: You forgot a '=back' before '=head1'Around line 385: '=item' outside of any '=over'


List all used modules in META.yml requires


  • strict
  • vars


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

Error: 0.01,1.01,2006258.001,2006258.002


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.


Define the license if you are using in Build.PL. If you are using MakeMaker (Makefile.PL) you should upgrade to ExtUtils::MakeMaker version 6.31.


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: Geo::CountryFlags, Geo::CountryFlags::CIA, Geo::CountryFlags::I2C, Geo::CountryFlags::ISO, Geo::CountryFlags::URLs, Geo::CountryFlags::Util, Geo::CountryFlags::XCPs


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


  • diagnostics


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
Geo::CountryFlags dynamically fetch flag gif's from CIA 1.01 metacpan
Geo::CountryFlags::CIA 2006258.002 metacpan
Geo::CountryFlags::I2C 2006258.002 metacpan
Geo::CountryFlags::ISO 2006258.002 metacpan
Geo::CountryFlags::URLs 2006258.001 metacpan
Geo::CountryFlags::Util Makefile.PL and update utilities 0.01 metacpan
Geo::CountryFlags::XCPs 2006258.001 metacpan

Other Files

Changes metacpan
MANIFEST metacpan
META.yml metacpan
Makefile.PL metacpan