Errors

meta_yml_conforms_to_known_spec

License 'MPL or MIT/X-derivate' is invalid (license) [Validation: 1.4]

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Sat 19 Dec 2009 01:22:06 AM JST
gpg:                using DSA key F6F11E21E9FF663E
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==