Wyng-backup throws exception

User Support General
1

I regularly use wyng to backup my system. Today I got an exception:

Wyng-util-qubes v0.9 beta rel 20250820
Enter passphrase: 

Selected for backup:
 <redacted>
Skipping dom0

Wyng 0.8 beta release 20250824
Encrypted archive 'qubes://<redacted>/backups'
Last updated <redacted>

Traceback (most recent call last):
  File "/srv/user_salt/wyng-backup/files/wyng", line 5774, in <module>
    raise e
  File "/srv/user_salt/wyng-backup/files/wyng", line 5614, in <module>
    sid, ses_tags = monitor_send(storage, aset, vols or selected_vols, monitor_only=False,
                    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                use_sesid=sid, ses_tags=ses_tags, imports=other_vols,
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                benchmark=options.dry_run, vname_sz=vname_sz)
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/srv/user_salt/wyng-backup/files/wyng", line 4124, in monitor_send
    for vol in aset.vols.values():   autoprune(vol, apmode="full")
                                     ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/srv/user_salt/wyng-backup/files/wyng", line 4374, in autoprune
    startdate = to_date(sessions[0])          ; nthresh = 3 if apmode == "on" else 0
                        ~~~~~~~~^^^
IndexError: list index out of range

Wyng::Failed return code 1

I get this exception consistently. wyng arch-check still works fine.

2

Did you try to remove the a_* files in /var/lib/wyng/ or use --remap --dedup ?

3

I just tried both, both didnt help.

However, looking at the exception i noticed that it has something to do with my wing.ini config. I configured prune = full and after removing it everything seems to be working fine…