This bug was fixed in the package ubuntu-release-upgrader - 1:18.04.25
--------------- ubuntu-release-upgrader (1:18.04.25) bionic; urgency=medium
* DistUpgradeQuirks.py: if ubuntu-desktop or snapd isn't in the package cache don't try and run the quirk for installing or upgrading snaps. (LP: #1787668)
-- Brian Murray <email address hidden> Tue, 28 Aug 2018 15:46:57 -0700
This bug was fixed in the package ubuntu- release- upgrader - 1:18.04.25
--------------- release- upgrader (1:18.04.25) bionic; urgency=medium
ubuntu-
* DistUpgradeQuir ks.py: if ubuntu-desktop or snapd isn't in the package
cache don't try and run the quirk for installing or upgrading snaps.
(LP: #1787668)
-- Brian Murray <email address hidden> Tue, 28 Aug 2018 15:46:57 -0700