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.

If you use Mac OS X, set COPYFILE_DISABLE (for OS 10.5 and better) or COPY_EXTENDED_ATTRIBUTES_DISABLE (for OS 10.4) environmental variable to true to exclude dot underscore files from a distribution.

Error:

• matio-1.5.0/config/._libtool.m4
• matio-1.5.0/config/._ltmain.sh
• matio-1.5.0/config/._ltoptions.m4
• matio-1.5.0/config/._ltsugar.m4
• matio-1.5.0/config/._ltversion.m4
• matio-1.5.0/config/._lt~obsolete.m4
• matio-1.5.0/config/._texinfo.tex
• matio-1.5.0/src/._mat5.c
• matio-1.5.0/src/._matvar_cell.c
• matio-1.5.0/src/._matvar_struct.c
• matio-1.5.0/visual_studio/._matio.def
• matio-1.5.0/visual_studio/._matioConfig.h
• matio-1.5.0/visual_studio/._matio_pubconf.h

Move your *.pm files in a directory named 'lib'. The directory structure should look like 'lib/Your/Module.pm' for a module named 'Your::Module'. If you need to provide additional files, e.g. for testing, that should not be considered for Kwalitee, then you should look at the 'provides' map in META.yml to limit the files scanned; or use the 'no_index' map to exclude parts of the distribution.

Error: GENERATED/PDL/IO/Matlab.pm

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 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).

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