GnuPG signature check failed on apr_1.4.2-3~bpo50+1_i386.changes gpg: Signature made Sat May 22 16:33:34 2010 CEST using DSA key ID C1F24EA4 gpg: Can't check signature: public key not found (Exit status 2) apr_1.4.2-3~bpo50+1_i386.changes has bad PGP/GnuPG signature! Removing apr_1.4.2-3~bpo50+1_i386.changes, but keeping its associated files for now. Greetings, Your Debian queue daemon