sks_1.1.1+dpkgv3-2~bpo50+1.dsc refers to sks_1.1.1+dpkgv3.orig.tar.gz, but I can't find it in the queue or in the pool.
'dpkg-source -x' failed for sks_1.1.1+dpkgv3-2~bpo50+1.dsc [return code: 2].
[dpkg-source output:] dpkg-source: warning: -sn is not a valid option for Dpkg::Source::Package::V3::quilt
[dpkg-source output:] gpg: Signature made Sun Sep 12 15:19:39 2010 UTC using DSA key ID 1557BC10
[dpkg-source output:] gpg: Can't check signature: public key not found
[dpkg-source output:] dpkg-source: failure: cannot fstat file ./sks_1.1.1+dpkgv3.orig.tar.gz: No such file or directory
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