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: Lemonldap::NG::Portal, Lemonldap::NG::Portal::Auth::Custom, Lemonldap::NG::Portal::Lib::Net::LDAP, Lemonldap::NG::Portal::Lib::OpenID::SREG, Lemonldap::NG::Portal::Lib::OpenID::Server, Lemonldap::NG::Portal::Main::Constants, Lemonldap::NG::Portal::Main::Process, Lemonldap::NG::Portal::Main::Run, Lemonldap::NG::Portal::Password::Custom, Lemonldap::NG::Portal::UserDB::Combination, Lemonldap::NG::Portal::UserDB::Custom

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

Error: 2.0,2.000003,2.000006,2.000008,2.000010,2.000011,2.000012,2.000013

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.