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.

Fix the problematic entry.

Error: Unrecognized escape \i passed through in regex; marked by <-- HERE in m/(?:^\.git)|(?:.pl$)|(?:^\i <-- HERE gnore.txt)|(?:^_build)|(?:^Build$)|(?:^blib)|(?:^Data-Printer)|(?:~$)|(?:\.bak$)|(?:cover_db)|(?:\..*\.sw.?$)|(?:^Makefile$)|(?:^pm_to_blib$)|(?:^blibdirs$)|(?:\.old$)|(?:^#.*#$)|(?:^\.#)|(?:^TODO$)|(?:^\._.*$)|(?:^MYMETA.yml$)/ at lib/ExtUtils/Manifest.pm line 440.

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.