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: Weixin::Client, Weixin::Client::Base, Weixin::Client::Cache, Weixin::Client::Callback, Weixin::Client::Chatroom, Weixin::Client::Cron, Weixin::Client::Friend, Weixin::Client::Operate, Weixin::Client::Plugin, Weixin::Client::Plugin::ShowMsg, Weixin::Client::Plugin::SmartReply, Weixin::Client::Private::_get_chatroom, Weixin::Client::Private::_get_qrcode_image, Weixin::Client::Private::_get_qrcode_uuid, Weixin::Client::Private::_init, Weixin::Client::Private::_is_need_login, Weixin::Client::Private::_login, Weixin::Client::Private::_logout, Weixin::Client::Private::_send_text_msg, Weixin::Client::Private::_sync, Weixin::Client::Private::_synccheck, Weixin::Client::Private::_update_chatroom_member, Weixin::Client::Private::_update_friend, Weixin::Client::Request, Weixin::Message, Weixin::Message::Constant, Weixin::Message::Queue, Weixin::UserAgent, Weixin::Util, pfwx

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.