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: Missing mandatory field, 'author' (author) [Validation: 1.3];Missing mandatory field, 'license' (license) [Validation: 1.3]


Fix MANIFEST.SKIP or use an authoring tool which respects MANIFEST.SKIP. Note that each entry in MANIFEST.SKIP is a regular expression. You may need to add appropriate meta characters not to ignore necessary stuff.



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


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, or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.

Error: Math::Cephes, Math::Cephes::Complex, Math::Cephes::Fraction, Math::Cephes::Matrix, Math::Cephes::Polynomial


Ask the owner of the distribution (the one who released it first, or the one who is designated in x_authority) to give you a (co-)maintainer's permission.


  • Math::Cephes
  • Math::Cephes::Complex
  • Math::Cephes::Fraction
  • Math::Cephes::Matrix
  • Math::Cephes::Polynomial


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


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


Name Abstract Version View
Math::Cephes perl interface to the cephes math library 0.47 metacpan
Math::Cephes::Complex Perl interface to the cephes complex number routines 0.47 metacpan
Math::Cephes::Fraction Perl interface to the cephes math fraction routines 0.47 metacpan
Math::Cephes::Matrix Perl interface to the cephes matrix routines 0.47 metacpan
Math::Cephes::Polynomial Perl interface to the cephes math polynomial routines 0.47 metacpan

Other Files

Changes metacpan
MANIFEST metacpan
META.yml metacpan
Makefile.PL metacpan
README metacpan
libmd/Makefile.PL metacpan