I managed to solve this error and do the upgrade from 13.10 to 14.04.
If you have the Xorg-edgers PPA enabled you have to purge it first, in order to revert to the original config. However, I thought I just had to remove the PPA from my software sources and be done with it. That didn't work (which, in hindsight, is perfectly logical).
The thing I tried after that was using ppa-purge of xorg-edgers. That didn't work as well...because I removed the PPA from my software sources. Duh.
So, I just added xorg-edgers to my PPA's again, used ppa-purge to remove/revert and after that the upgrade from 13.10 to 14.04 went flawless.
Long story short: you can only ppa-purge stuff that is in your list of software sources.
Hi,
I managed to solve this error and do the upgrade from 13.10 to 14.04.
If you have the Xorg-edgers PPA enabled you have to purge it first, in order to revert to the original config. However, I thought I just had to remove the PPA from my software sources and be done with it. That didn't work (which, in hindsight, is perfectly logical).
The thing I tried after that was using ppa-purge of xorg-edgers. That didn't work as well...because I removed the PPA from my software sources. Duh.
So, I just added xorg-edgers to my PPA's again, used ppa-purge to remove/revert and after that the upgrade from 13.10 to 14.04 went flawless.
Long story short: you can only ppa-purge stuff that is in your list of software sources.
Cheers,
Sander