E: The repository 'http://ppa.launchpad.net/jonathonf/python-3.6/ubuntu disco Release' does not have a Release file
63320
Ubuntu repository does not have a Release file
339
How to resolve "Failed to download repository information"?
154622
How do I resolve this installation error?
117112
Why isn't Ubuntu moving its repositories to old-releases anymore?
23236
Manually Installed new Python to /usr/bin, how to get Repo version back?
51350
While updating the ubuntu 16.04 does not have a Release file Error
110896
Package installation - Outdated repository
1632
How do I fix a "Failed to download package files" error?
21323
Where can I download the latest release of Ubuntu?
27793
How do I install the latest Python 2.7.X or 3.X on Ubuntu?
8525
Error Updating: izx/askubuntu/ubuntu xenial Release' does not have a Release file
41519
What can I do if a package is not available on the newest version of Ubuntu (18.04) but is available on older versions?
139458
How to download packages from a command-line given repository?
34529
Files list file for package missing -- dpkg warning
120
How do I restore the default repositories?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
155154
I am currently using 19.04 and I got "No new release found for 19.10"