Unable to add ppa repository
65
What can I do if a repository/PPA does not have a Release file?
34069
Why am I getting authentication errors for packages from an Ubuntu repository?
11909
404 error with apt-get update, Don't have any PPA's
120
How do I restore the default repositories?
93030
dependency in ppa
49337
How to add repository from shell in Debian?
109277
Can't Add ppa:x2go/stable
28788
How do I create a PPA?
36332
Can a deb package contain a PPA dependency and install packages from the PPA?
154815
How do I add a repository from behind a proxy?
113379
Updating the repository isn't working
59392
System settings won't open on Ubuntu 20.04 LTS after adding System76/pop PPA
143747
How do I enable the "backports" repository?
92739
E: The repository 'http://ppa.launchpad.net/jonathonf/python-3.6/ubuntu disco Release' does not have a Release file
69765
How do I cherry pick packages from a PPA?
339
How to resolve "Failed to download repository information"?
132933
Is there a tool to update my PPA sources.list entries after upgrading?