Errors

use_strict

File::Feed::Util

use_warnings

File::Feed::Util

valid_signature

Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Tue 25 Jul 2017 05:46:24 AM JST
gpg:                using DSA key F481D83A03E8DC6D
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==