I am trying to backup to Ubuntu-One using the "Backup" program that was loaded with the distro, Ubuntu 13.04 (fully patched).

Here is the error message I am getting:

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Failed with an unknown error:

Traceback (most recent call last):
File "/usr/bin/duplicity", line 1411, in <module>
with_tempdir(main)
File "/usr/bin/duplicity", line 1404, in with_tempdir
fn()
File "/usr/bin/duplicity", line 1338, in main
restore(col_stats)
File "/usr/bin/duplicity", line 632, in restore
restore_get_patched_rop_iter(col_stats)):
File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 526, in Write_ROPaths
for ropath in rop_iter:

++++++++++++++++++++++++++++++++++++++++

File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 499, in integrate_patch_iters
final_ropath = patch_seq2ropath( normalize_ps( patch_seq ) )
File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 466, in patch_seq2ropath
assert len( patch_seq ) == 1, len( patch_seq )
AssertionError: 8

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Later, I applied some patches, including one about Ubuntu One. After that I got the same error message, MINUS all the stuff below the ++++++++ line.

Just for laughs, I just tried a restore, and got this error message:

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Traceback (most recent call last):
File "/usr/bin/duplicity", line 1411, in <module>
with_tempdir(main)
File "/usr/bin/duplicity", line 1404, in with_tempdir
fn()
File "/usr/bin/duplicity", line 1282, in main
sync_archive(decrypt)
File "/usr/bin/duplicity", line 1082, in sync_archive
copy_to_local(fn)
File "/usr/bin/duplicity", line 1023, in copy_to_local
fileobj = globals.backend.get_fileobj_read(fn)
File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line 590, in get_fileobj_read
self.get(filename, tdp)
File "/usr/lib/python2.7/dist-packages/duplicity/backends/u1backend.py", line 242, in get
f = open(local_path.name, 'wb')
IOError: [Errno 2] No such file or directory: '/home/peter/.cache/deja-dup/tmp/duplicity-Sen34G-tempdir/mktemp-7Bi9Gu-2'

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Ubuntu One under "System Setings" shows 7.2 GB of 65 GB used, so something is getting uploaded, but I can't see it or restore it.

Can someone tell me what is going on here?