Errors

use_warnings

Oxford::Calendar

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Fri 06 Jun 2008 02:43:56 AM JST
gpg:                using DSA key 633B85285178E2A5
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==