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I am trying to upgrade from Ubuntu 20.04 to 22.04 yet when running the sudo do-release-upgrade I get the error message:

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.


This was likely caused by:
Unofficial software packages not provided by Ubuntu Please use the tool 'ppa-purge' from the ppa-purge package to remove software from a Launchpad PPA and try the upgrade again.


If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If you want to investigate this yourself the log files in '/var/log/dist-upgrade' will contain details about the upgrade. Specifically, look at 'main.log' and 'apt.log'.

I checked /var/log/dist-upgrade/main.log which contains the following message:

ERROR Dist-upgrade failed: 'Broken packages after upgrade: evolution-data-server, gnome-control-center, libgirepository-1.0-1, ubuntu-desktop'

I'm not familiar with these packages and they look necessary. Is it safe to run ppa-purge or sudo apt remove on them? How should I proceed from here?

Sabnock01
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    The evolution-data-server package is only essential if you want/need to use the GNOME desktop, as it's a backend server used by it, it's not part of the GNOME MUA evolution. If your packages are from 3rd party repositories, you should revert to the Ubuntu repository packages and not just remove them (if you want those features/functions available when you get to jammy) – guiverc Feb 09 '23 at 21:27
  • How do I revert them? – Sabnock01 Feb 09 '23 at 22:10
  • ppa-purge is usually used for that purpose, https://askubuntu.com/questions/307/how-can-ppas-be-removed maybe helpful, but I've not used that tool in (>5) years so I'd prefer not to advise. If I've made many package changes from 3rd party, I usually opt to non-destructively re-install (ie. Upgrade via re-install) – guiverc Feb 09 '23 at 22:42

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