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 14 Sep 2014 06:06:44 PM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Sun Sep 14 18:06:44 2014 +++ @@ -1,6 +1,8 @@ SHA1 f3cf72fa27c2bd082bf966b639f115f6f37b886b Changes -SHA1 841b3700466c1512825b1f99203a6501e680c2f9 MANIFEST +SHA1 02692d3d35d4c40215da3f6848b7053601a073ef MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 a0063e60983010b831c4280592de014b07498b1407642a8880faabe7c1eb5a60 META.json +SHA256 227c4d416cf80da26d236ec9585a9edd63e69470a58ab65907bcdf2c96a844d6 META.yml SHA1 bd625297c7f23914e69367907cb87f629c3804d1 Makefile.PL SHA1 520d83d06291387427540bcb6f6a36babf840bec README SHA1 b8d2c2f6b8ecdb5cc5cc999895b1c05130b51b4f lib/Test/Excel.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.

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.