Duplicity fails backups at the end every time

[Santiago Gala]

Backup seems to progress well (it takes a long time) and ends up with this error:

Traceback (innermost last):
  File "/usr/bin/duplicity", line 1555, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1541, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1393, in main
    do_backup(action)
  File "/usr/bin/duplicity", line 1472, in do_backup
    restore(col_stats)
  File "/usr/bin/duplicity", line 728, in restore
    restore_get_patched_rop_iter(col_stats)):
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 558, in Write_ROPaths
    for ropath in rop_iter:
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 521, in integrate_patch_iters
    for patch_seq in collated:
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 389, in yield_tuples
    setrorps(overflow, elems)
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 378, in setrorps
    elems[i] = iter_list[i].next()
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 107, in filter_path_iter
    for path in path_iter:
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 121, in difftar2path_iter
    tarinfo_list = [tar_iter.next()]
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 339, in next
    self.set_tarfile()
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 333, in set_tarfile
    self.current_fp = self.fileobj_iter.next()
  File "/usr/bin/duplicity", line 764, in get_fileobj_iter
    backup_set.volume_name_dict[vol_num],
 KeyError: 8
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2017-12-11 (849 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
Package: duplicity 0.7.17-0ubuntu1.1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.3.0-42.34~18.04.1-generic 5.3.18
Tags: bionic
Uname: Linux 5.3.0-42-generic x86_64
UpgradeStatus: Upgraded to bionic on 2018-06-05 (673 days ago)
UserGroups: adm cdrom dip docker input lpadmin plugdev sambashare sudo wireshark
_MarkForUpload: True

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1871757

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Santiago Gala (sgala)]

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[Santiago Gala (sgala)]

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[Santiago Gala (sgala)]

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