I experienced this with deja-dup 32.0-0ubuntu5 and duplicity 0.7.01-1ubuntu1. I think it's caused by this bug in duplicity:
https://bugs.launchpad.net/duplicity/+bug/1411803 That bug has been fixed in duplicity 0.7.02. I installed duplicity 0.7.02 from source, and I am no longer experiencing the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1422289 Title: Backup failed with duplicity assertion error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1422289/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
