Errors

prereq_matches_use

• Graph::Easy::Parser
• Graph::Reader
• Graph::Writer

use_warnings

Graph::Reader::Graph6, Graph::Writer::Graph6

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 31 May 2015 07:58:18 AM JST
gpg:                using DSA key 2C5302215F6ADD3A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==