I am using duply wrapper script and made a full backup of my folder to another location, when I then try to run incr backup, Duplicity keeps telling me, that last full backup date is none.

Warning, found signatures but no corresponding backup files
Warning, found incomplete backup sets, probably left from aborted session
Last full backup date: none
Last full backup is too old, forcing full backup
Collection Status
Connecting with backend: BackendWrapper
Archive dir: /root/.cache/duplicity/duply_my_profile

Found 0 secondary backup chains.
No backup chains with active signatures found
Also found 0 backup sets not part of any chain,
and 1 incomplete backup set.

Command line duplicity was called with (note: I called dry-run here just to produce this output and send it to a file, since the full backup takes almost a day. Was ran without dry-run before. "nas-cloud" is defined in .ssh/config along with the ssh keys. The connection works, the files are appearing on the other side and updated):

duplicity 0.7.11 (December 31, 2016)
Args: /usr/bin/duplicity incr --name duply_my_profile --encrypt-key \
******** --sign-key ******** --verbosity 9 \
--full-if-older-than 1M --par2-redundancy 15 --asynchronous-upload \
--force --dry-run --exclude-filelist /root/.duply/my_profile/exclude \ 
/opt/storage/ par2+pexpect+sftp://nas-cloud//backups/

Linux debian 4.9.0-6-amd64 #1 SMP Debian 4.9.82-1+deb9u3 (2018-03-02) x86_64 
/usr/bin/python 2.7.13 (default, Nov 24 2017, 17:33:09) 
[GCC 6.3.0 20170516]

Something seems to be wrong with the signatures How can I fix this or what can I do to find more about this issue?

0 files exist on backend
4 files exist in cache
Extracting backup chains from list of files: []
--------------[ Backup Statistics ]--------------
StartTime 1523349943.62 (Tue Apr 10 10:45:43 2018)
EndTime 1523350235.82 (Tue Apr 10 10:50:35 2018)
ElapsedTime 292.20 (4 minutes 52.20 seconds)
SourceFiles 1284474
SourceFileSize 330150901549 (307 GB)
NewFiles 643763
NewFileSize 330150901549 (307 GB)
DeletedFiles 0
ChangedFiles 0
ChangedFileSize 0 (0 bytes)
ChangedDeltaSize 0 (0 bytes)
DeltaEntries 643763
RawDeltaSize 0 (0 bytes)
TotalDestinationSizeChange 0 (0 bytes)
Errors 0

Releasing lockfile /root/.cache/duplicity/duply_my_profile/lockfile.lock
Removing still remembered temporary file /tmp/duplicity-mtXuus-tempdir/mkstemp-5_L1Mx-1
--- Finished state OK at 10:50:36.835 - Runtime 00:04:57.692 ---
  • Does really no one have a solution to this problem? Apr 12 '18 at 10:40

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