Comment 2 for bug 930151

0.6.17 is way past EOL.

Please upgrade to the current version of duplicity, 0.8.20. This will assure that any bugs fixed since your release are available and may fix your issue.

There are multiple options both stable and latest:
- Stable snap builds - “sudo snap install duplicity —classic"
- Latest snap builds - “sudo snap install duplicity —classic —edge"
- Stable pip3 builds - “sudo python3 -m pip install duplicity"
- Latest pip3 builds - “sudo python3 -m pip install --pre duplicity"
- Stable duplicity PPA - https://code.launchpad.net/~duplicity-team/+archive/ubuntu/duplicity-release-git
- Latest duplicity PPA - https://code.launchpad.net/~duplicity-team/+archive/ubuntu/duplicity-develop-git
- Stable tarball install - https://launchpad.net/duplicity/+download
- Source - https://gitlab.com/duplicity/duplicity

Note 1: UNINSTALL duplicity first if it was installed from a different source.. This is due to divergent install locations, especially between repository installs and the other forms.

Note 2: Launchpad PPAs contain builds for Bionic 18.04, Eoan 19.10, Focal 20.04, Hirsute 20.10 and Impish 21.04.

Note 3: Xenial 16.04 works with Snap and Pip installs, but cannot be built under Launchpad PPAs at the moment.