Errors

use_warnings

App::MusicTools

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 15 Jan 2016 12:50:04 AM JST
gpg:                using RSA key 34C4556AB04EE094
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==