Sign the dist as the last step before creating the archive. Take care not to modify/regenerate dist meta files or the manifest.

Error: Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer. gpg: Signature made Sun 28 Sep 2014 05:34:25 PM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Sun Sep 28 17:34:29 2014 +++ @@ -1,6 +1,8 @@ SHA1 71248d10182ae3a7c9675961ddf5467dcc34a704 Changes -SHA1 8c0ff57077ef6c50d981a90c27c0fb1c3fbc24a0 MANIFEST +SHA1 d207f3f05e5837203a27f42a768e7842888b116c MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 35aaf19e489928597c7266857cfce7b75f91183de8b3524633a4f4431898a129 META.json +SHA256 83fd0b923fea8327d7477f02afcf8bfbfe7fae92a9d87f53058d714d9fdbc29a META.yml SHA1 86303d412dc46b7f540dc6db139981b7938c85cf Makefile.PL SHA1 57437afcbba815eb9b21232a7be5ed9e408484a6 README SHA1 33826bea15b3421af30aadea1e8a913f069221ac lib/Compare/Directory.pm ==> MISMATCHED content between SIGNATURE and distribution files! <==

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.

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 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.