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 Fri 24 Oct 2014 07:36:35 AM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Fri Oct 24 07:36:35 2014 +++ @@ -1,6 +1,8 @@ SHA1 6f2da5084a75301a600d9c96979f8407a7383742 Changes -SHA1 3ab88d5b885334061053d71ba50bc59f9fe0e769 MANIFEST +SHA1 782dc199d07a540726c44804f5b9f3fe7df153ce MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 1fe649809c4d2a042312595ed97630bd37e8d464c1c502e6b4b8e57810f2cdfc META.json +SHA256 8ccbc81180ce825dc97a2744d4984595be541d2887f0c11c836618deba0b83ec META.yml SHA1 fcae0ded5bb1d2cfd88582fa82c01453348e8b37 Makefile.PL SHA1 a182f7c2100ce36281693411e3d5ce65a253c14d README SHA1 7758ae3238b32bcf4b781809b802b52877c6718b lib/Map/Tube/London.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.