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 =head1 LICENSE and/or the proper text of the well-known license to the main module in your code.

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: Bio::DB::SeqFeature, Bio::DB::SeqFeature::NormalizedFeature, Bio::DB::SeqFeature::NormalizedFeatureI, Bio::DB::SeqFeature::NormalizedTableFeatureI, Bio::DB::SeqFeature::Segment, Bio::DB::SeqFeature::Store::DBI::Iterator, Bio::DB::SeqFeature::Store::DBI::Pg, Bio::DB::SeqFeature::Store::DBI::SQLite, Bio::DB::SeqFeature::Store::DBI::mysql, Bio::DB::SeqFeature::Store::FeatureFileLoader, Bio::DB::SeqFeature::Store::GFF2Loader, Bio::DB::SeqFeature::Store::GFF3Loader, Bio::DB::SeqFeature::Store::LoadHelper, Bio::DB::SeqFeature::Store::Loader, Bio::DB::SeqFeature::Store::bdb, Bio::DB::SeqFeature::Store::berkeleydb, Bio::DB::SeqFeature::Store::berkeleydb3, Bio::DB::SeqFeature::Store::memory

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

Error: 1.007004,1.12

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.