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[Duplicity-tracker] duplicity list-current-files failing with "Collectio

From: Vin Salt
Subject: [Duplicity-tracker] duplicity list-current-files failing with "CollectionsError: No signature chains found"
Date: Wed, 20 Dec 2017 15:59:42 -0500

Hello all -

A new duplicity user here.
I  am testing a simple backup, list files and restore.
While running duplicity list-current-files, I got the following error:

address@hidden:~/test$ duplicity list-current-files sftp://vps9.example.net:2999/home/vin/Backup/Documents/abdoks
/usr/lib/python2.7/dist-packages/Crypto/Cipher/blockalgo.py:141: FutureWarning: CTR mode needs counter parameter, not IV
  self._cipher = factory.new(key, *args, **kwargs)
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: none
Traceback (innermost last):
  File "/usr/bin/duplicity", line 1559, in <module>
  File "/usr/bin/duplicity", line 1545, in with_tempdir
  File "/usr/bin/duplicity", line 1394, in main
  File "/usr/bin/duplicity", line 1477, in do_backup
  File "/usr/bin/duplicity", line 703, in list_current
    sig_chain = col_stats.get_signature_chain_at_time(time)
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 1008, in get_signature_chain_at_time
    raise CollectionsError("No signature chains found")
CollectionsError: No signature chains found

However, when I copy the remote directory to a local directory and run the list-current-files it works:
address@hidden:~/test/abdoks$ cd ..
address@hidden:~/test$ rmdir abdoks/
address@hidden:~/test$ scp -r -P 2999 address@hidden:/home/vin/Backup/abdoks .Warning: Permanently added '[vps9.example.net]:2999,[967.488.998.337]:2999' (ECDSA) to the list of known hosts.
duplicity-full.20171215T031851Z.vol2.difftar.gpg                                      100%  200MB  20.0MB/s   00:10   
duplicity-full.20171215T031851Z.vol1.difftar.gpg                                      100%  200MB  16.7MB/s   00:12   
duplicity-full.20171215T031851Z.manifest.gpg                                          100%  139KB 139.1KB/s   00:00   
duplicity-full.20171215T031851Z.vol4.difftar.gpg                                      100%  170MB  18.9MB/s   00:09   
duplicity-full-signatures.20171215T031851Z.sigtar.gpg                                 100%   17MB  17.3MB/s   00:01   
duplicity-full.20171215T031851Z.vol3.difftar.gpg                                      100%  200MB  22.2MB/s   00:09  

duplicity list-current-files --encrypt-key=D7XXXXXX --sign-key=D7XXXXXX file:///home/vin/test/abdoks | tee log.txt
<<Removed gnupg pp request and response>>
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: Thu Dec 14 22:18:51 2017
Sat Apr  5 11:40:32 2014 .
Sat Apr  5 11:38:28 2014 _PROJECTS
List of backup contents follows.

address@hidden:~/test$ uname -a
Linux i7 4.4.0-104-generic #127-Ubuntu SMP Mon Dec 11 12:16:42 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
address@hidden:~/test$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial
address@hidden:~/test$ duplicity --version
duplicity 0.7.15
address@hidden:~/test$ date
Wed Dec 20 15:57:39 EST 2017

Any hints on how to resolve this?
For obvious reasons, names and ips randomized.

Thank you. Apologize if this was already addressed in any previous threads - I searched, couldn't find it.

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