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 '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: Wx, Wx::AUI, Wx::App, Wx::ArtProvider, Wx::Calendar, Wx::DND, Wx::DataView, Wx::DateTime, Wx::DocView, Wx::DropSource, Wx::Event, Wx::FS, Wx::Grid, Wx::Help, Wx::Html, Wx::IPC, Wx::Locale, Wx::MDI, Wx::Media, Wx::Menu, Wx::Mini, Wx::Overload::Driver, Wx::Overload::Handle, Wx::Perl::Carp, Wx::Perl::SplashFast, Wx::Perl::TextValidator, Wx::PerlTest, Wx::Print, Wx::PropertyGrid, Wx::RadioBox, Wx::Ribbon, Wx::RichText, Wx::STC, Wx::Socket, Wx::Timer, Wx::WebView, Wx::XRC, Wx::build::MakeMaker, Wx::build::MakeMaker::Any_OS, Wx::build::MakeMaker::Any_wx_config, Wx::build::MakeMaker::Core, Wx::build::MakeMaker::Hacks, Wx::build::MakeMaker::MacOSX_GCC, Wx::build::MakeMaker::Win32, Wx::build::MakeMaker::Win32_MSVC, Wx::build::MakeMaker::Win32_MinGW, Wx::build::Options, Wx::build::Utils

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

Error: 0.01,0.02,0.28,0.9929

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.

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