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 17 Oct 2014 04:34:07 AM JST gpg: using RSA key DA172575A8EC2FE9 gpg: Can't check signature: No public key --- SIGNATURE Fri Oct 17 04:34:07 2014 +++ @@ -1,6 +1,8 @@ SHA1 4662d8dd8ee7c044557bef311f546dbb04e68198 Changes -SHA1 d6fd392e41ecff27465655d126860813fef85e42 MANIFEST +SHA1 ead2cd9ca2f15fa31fb7a371b34790659c0893a5 MANIFEST SHA1 5f29cdcbfacb9c46ac155fff9844aceeb064aef1 MANIFEST.SKIP +SHA256 6b9fddcaa9d299ae93542b0e79f9ec40d29d3ac1f504d08c7194eb22ebbf726f META.json +SHA256 8ebe6ef7a0f086c5c2148b68b2dc20573c83fd64dcc8305a7c11e9bad8428a16 META.yml SHA1 6c586e9baa6ea5b161cb0807d72d87359624625b Makefile.PL SHA1 96989cb22f9f740c15508ea0f1514501563de387 README SHA1 79fb845e66599f76abf8505be2bd520324eb306c lib/WWW/Google/CustomSearch.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.