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 tests or move tests.pl to the t/ directory!

Use the prompt() method from ExtUtils::MakeMaker/Module::Build.

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 =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: Embperl, Embperl::App, Embperl::Constant, Embperl::Form, Embperl::Form::Control, Embperl::Form::Control::addremove, Embperl::Form::Control::age, Embperl::Form::Control::blank, Embperl::Form::Control::button, Embperl::Form::Control::checkbox, Embperl::Form::Control::checkboxes, Embperl::Form::Control::datetime, Embperl::Form::Control::display, Embperl::Form::Control::displaylink, Embperl::Form::Control::dump, Embperl::Form::Control::duration, Embperl::Form::Control::file, Embperl::Form::Control::grid, Embperl::Form::Control::hidden, Embperl::Form::Control::info, Embperl::Form::Control::input, Embperl::Form::Control::inputjoin, Embperl::Form::Control::inputlist, Embperl::Form::Control::label, Embperl::Form::Control::line, Embperl::Form::Control::mult, Embperl::Form::Control::number, Embperl::Form::Control::password, Embperl::Form::Control::price, Embperl::Form::Control::radio, Embperl::Form::Control::scriptcode, Embperl::Form::Control::select, Embperl::Form::Control::selectdyn, Embperl::Form::Control::show, Embperl::Form::Control::submit, Embperl::Form::Control::table, Embperl::Form::Control::tabs, Embperl::Form::Control::textarea, Embperl::Form::Control::tinymce, Embperl::Form::Control::transparent, Embperl::Form::ControlMultValue, Embperl::Form::DataSource, Embperl::Form::Validate, Embperl::Form::Validate::Default, Embperl::Form::Validate::EMail, Embperl::Form::Validate::EMailRFC, Embperl::Form::Validate::FQDN_IPAddr, Embperl::Form::Validate::FQDN_IPv4_IPv6Addr, Embperl::Form::Validate::IP6Addr_Mask, Embperl::Form::Validate::IPAddr, Embperl::Form::Validate::IPAddr_Mask, Embperl::Form::Validate::IPv6Addr, Embperl::Form::Validate::IPv6Addr_Mask, Embperl::Form::Validate::Integer, Embperl::Form::Validate::Number, Embperl::Form::Validate::PosInteger, Embperl::Form::Validate::Select, Embperl::Form::Validate::TimeHHMM, Embperl::Form::Validate::TimeHHMMSS, Embperl::Form::Validate::TimeValue, Embperl::Inline, Embperl::Log, Embperl::Mail, Embperl::Object, Embperl::Out, Embperl::ParseSource, Embperl::Recipe, Embperl::Recipe::Embperl, Embperl::Recipe::EmbperlLibXSLT, Embperl::Recipe::EmbperlPODXSLT, Embperl::Recipe::EmbperlXSLT, Embperl::Recipe::EmbperlXalanXSLT, Embperl::Recipe::LibXSLT, Embperl::Recipe::XSLT, Embperl::Recipe::XalanXSLT, Embperl::Run, Embperl::Syntax, Embperl::Syntax::ASP, Embperl::Syntax::Embperl, Embperl::Syntax::EmbperlBlocks, Embperl::Syntax::EmbperlHTML, Embperl::Syntax::HTML, Embperl::Syntax::Mail, Embperl::Syntax::MsgIdExtract, Embperl::Syntax::POD, Embperl::Syntax::Perl, Embperl::Syntax::RTF, Embperl::Syntax::SSI, Embperl::Syntax::Test, Embperl::Syntax::Test2, Embperl::Syntax::Text, Embperl::Util, HTML::Embperl::Session

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.