Errors

meta_yml_conforms_to_known_spec

License 'Artistic' is invalid (license) [Validation: 1.3]

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Sun 23 Nov 2008 02:57:12 PM JST
gpg:                using DSA key 31F9562596406EA0
gpg: Can't check signature: No public key
--- SIGNATURE Sun Nov 23 14:57:12 2008
+++ 
@@ -1,7 +1,7 @@
 SHA1 7dfab147f3d0fac140c58043c4585e745f4b8fdf Changes
 SHA1 75787f12fb3b38fce5f388f80312900d9c4f660a MANIFEST
 SHA1 7e740186be7996b6ce3ed345d17f9760678a5c6b MANIFEST.SKIP
-SHA1 584053e61753e83dcc78d9f6607f643e769f8919 META.yml
+SHA1 ef4800a93b1da7b784633f04f3fed5071ab906fa META.yml
 SHA1 ed58aa4673275e4359323e8f687d3230143cd5b5 Makefile.PL
 SHA1 7e2cfa1b9efe0d502ee57717649c90ba4bd28ba9 inc/Module/Install.pm
 SHA1 6e1392d80a0f239eecd5664f7f21f922cedb9329 inc/Module/Install/Base.pm
==> MISMATCHED content between SIGNATURE and distribution files! <==