Comment 5 for bug 1741769

I have exactly the same problem on with the same versions.
I'm doing the backup on a network storage and I'm not sure where deja-dup is mounting it (will it be mounted at all or is it directly accessing it)?
*If* it is some kind of reading/or writing error the error message / handling should be improved.
People without technical knowledge won't find out what happened or what to do and they probably never heard of the bugtracker on launchpad. ;)

$ dpkg-query -W deja-dup duplicity
deja-dup 37.1-2fakesync1
duplicity 0.7.17-0ubuntu1

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic

$ uname -a
Linux scathach 4.15.0-42-generic #45-Ubuntu SMP Thu Nov 15 19:32:57 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

$ python --version
Python 2.7.15rc1