This looks a bit like bug 877631.
Can you give me the list of files starting with "duplicity-full.20120114T093612Z.vol1" in the backup location?
Can you also try deleting ~/.cache/deja-dup and trying again?
This looks a bit like bug 877631.
Can you give me the list of files starting with "duplicity- full.20120114T0 93612Z. vol1" in the backup location?
Can you also try deleting ~/.cache/deja-dup and trying again?