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: License '<undef>' is invalid (license) [Validation: 1.3];Missing mandatory field, 'license' (license) [Validation: 1.3]


List all used modules in META.yml requires


  • AutoLoader
  • Carp
  • Socket
  • strict
  • vars


Add 'use strict' (or its equivalents) to all modules, or convince us that your favorite module is well-known enough and people can easily see the modules are strictly written.

Error: NetAddr::IP::Util_IS


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

Error: 0.08,1,1.09,1.53,1.57,4.079


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: NetAddr::IP, NetAddr::IP::InetBase, NetAddr::IP::Lite, NetAddr::IP::Util, NetAddr::IP::UtilPP, NetAddr::IP::Util_IS


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


  • strict


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
NetAddr::IP Manages IPv4 and IPv6 addresses and subnets 4.079 metacpan
NetAddr::IP::InetBase IPv4 and IPV6 utilities 0.08 metacpan
NetAddr::IP::Lite Manages IPv4 and IPv6 addresses and subnets 1.57 metacpan
NetAddr::IP::Util IPv4/6 and 128 bit number utilities 1.53 metacpan
NetAddr::IP::UtilPP pure Perl functions for NetAddr::IP::Util 1.09 metacpan
NetAddr::IP::Util_IS Tell about Pure Perl 1 metacpan


Name File View
NetAddr::IP::UtilPolluted Lite/Util/ metacpan

Other Files

Changes metacpan
Lite/MANIFEST metacpan
Lite/Makefile.PL metacpan
Lite/Util/MANIFEST metacpan
Lite/Util/Makefile.PL metacpan
MANIFEST metacpan
META.yml metacpan
Makefile.PL metacpan