Can't add ppa:x2go/stable error in 14.04 LTS
109277
Can't Add ppa:x2go/stable
7776
How to correctly install libpng12-0 on the Ubuntu 19.10?
146311
Cannot do a `composer install` even though my minimum stability is listed as dev
139120
Intel Graphis card not updating. Problem with ppa?
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
6945
How to add a PPA on a server?
8282
Are PPAs safe to add to my system and what are some "red flags" to watch out for?
77827
How do I file a bug on a PPA upstream with the maintainers using Launchpad?
39582
Difference between "ppa-purge" and "add-apt-repository -r"?
45921
VLC will not install 14.04
5316
Update from 14.04 to 16.04 failed with GPG error
105208
How can I check if a PPA has packages for another Ubuntu version?
28788
How do I create a PPA?
1856
How do I add the kernel PPA?
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
32089
Update to latest version of java after ppa is discontinued
111573
What's the best way to re-enable PPAs/repos after an upgrade?