Public bug reported:
I had a previous problem with some unofficial xorg ppa, I removed it
using ppa-purge and tried to upgrade again but I got the same message:
"Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This was likely caused by:
* Unoffic
** Summary changed:
- I try to upgrade from 18.03 to 20 LTS version, but y got a purge with PPA
message. when i do, the error continue
+ I try to upgrade from 18.03 to 20.04 LTS version, but I only got purge
message with PPA command. when i do, the error continue
--
You received this bug not
Public bug reported:
sudo update-manager -d
Checking for a new Ubuntu release
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py:23:
PyGIWarning: Gtk was imported without specifying a version first. Use
gi.require_version('Gtk', '3.0') before import to ensure that the right version