E: The repository 'https://download.docker.com/linux/debian focal Release' does not have a Release file
65
What can I do if a repository/PPA does not have a Release file?
11909
404 error with apt-get update, Don't have any PPA's
112879
W: The repository 'http://download.fpcomplete.com/ubuntu yakkety Release' is not signed
12534
14.04 --> 16.04 failed; apt (>= 1.0.1ubuntu2.13)' is not installed
148176
Apt-mirror for amd64 did not include focal/main/dep11 and focal/main/cnf/Commands-amd64
85250
Skipping acquire of configured file 'xxxx' as repository 'xxxx xenial InRelease' doesn't support architecture 'i386'"
339
How to resolve "Failed to download repository information"?
84988
apt-get build-dep is unable to find a source package
149113
"Type 'debo' is not known on line 1 in source list /etc/apt/sources.list.d/spotify.list"
86777
Distribution upgrade problem "No new release found"
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?
90212
'http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 ./ Release' is not signed
152795
Is there Ubuntu's analogue of snapshot.debian.org?
144022
How to install a package from a local repository?
28650
`apt-get update` cannot find Ubuntu servers
70568
dpkg: unrecoverable fatal error, aborting: files list file for package 'linux-generic' is missing final newline
154622
How do I resolve this installation error?