Kwalitee Issues


Add a Changelog (best named 'Changes') to the distribution. It should list at least major changes implemented in newer versions.


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: License '<undef>' is invalid (license) [Validation: 1.2];Missing mandatory field, 'license' (license) [Validation: 1.2]


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


Add tests or move to the t/ directory!


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: IO::Events


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
IO::Events Non-blocking IO using events 0.6 metacpan


Name File View
IO::Events::Fork::Read metacpan
IO::Events::Fork::ReadWrite metacpan
IO::Events::Fork::Write metacpan
IO::Events::Handle metacpan
IO::Events::Loop metacpan
IO::Events::Process::Read metacpan
IO::Events::Process::ReadWrite metacpan
IO::Events::Process::Write metacpan
IO::Events::Socket metacpan
IO::Events::Socket::TCP metacpan
IO::Events::Socket::UDP metacpan
IO::Events::Socket::UNIX metacpan
IO::Events::Timer metacpan
IO::Events::internal::Shadow metacpan
IO::Events::stderr metacpan
IO::Events::stdin metacpan
IO::Events::stdout metacpan

Other Files

MANIFEST metacpan
META.yml metacpan
Makefile.PL metacpan