I enabled the built-in Backup feature in Ubuntu 16.10, but it doesn't work.
I get this error:

Failed to execute child process "duplicity" (No such file or directory)

2 Answers 2


This is a known bug: https://bugs.launchpad.net/deja-dup/+bug/1641423

Duplicity is not installed. Executing

sudo apt-get install duplicity

will fix that.

  • 1
    Be aware that apt-get gives you version 0.7.06 of duplicity on Ubuntu 16.04/16.10. This version has an issue that can cause your backups not to run. For details see bugs.launchpad.net/duplicity/+bug/1320641. I believe the answer given here is still correct. (An alternative would be to install duplicity outside of apt-get, which has its risks as well.) Just given the possible impact of this bug I thought it's good to mention.
    – Kees Beets
    Aug 20, 2017 at 6:18

Had to install duplicity following python-gi

sudo apt-get install duplicity


sudo apt-get install python-gi

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