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 Sat 30 Aug 2014 10:46:57 AM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Sat Aug 30 10:46:57 2014 +++ @@ -1,6 +1,8 @@ SHA1 57283f3ba59bb820e150985a230a09ecd3c2cc9c Changes -SHA1 6ebb9e509b79f8bd1b7d9269a1d734267cb00d2f MANIFEST +SHA1 07e398e4a85f228f6dda6b74b89cd9d205e84f6a MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 b0ed5408cf4e4bad6822be74964615fe1794cc04ae3ac79d6882c56f97ab7f1e META.json +SHA256 f432aa0fdff127e1b83f44db437b3ea5fee5bdeed577f2c9b15b27cb9d1bd5b1 META.yml SHA1 c4ef3af01afed17487ca6b3f4c0116191cf42756 Makefile.PL SHA1 6644d30b1b5cdca44d39666e6d38bbf5cabc2234 README SHA1 8c9c2bb592bb195ae2f79f76d2dde71edd29e31c lib/Map/Tube.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.