Cannot install cairo-dock because "The repository does not have a Release file" on 18.04
65
What can I do if a repository/PPA does not have a Release file?
10193
Failed to download repository information due to missing CDROM
43579
I cannot install new packages: "Could not get lock /var/lib/dpkg/lock"
21617
Why can't I press the Install button when installing applications from unknown sources?
83216
apt get update missing release file
7671
I get an error with the archipack
743
How do I enable the "Universe" repository?
86777
Distribution upgrade problem "No new release found"
143747
How do I enable the "backports" repository?
112879
W: The repository 'http://download.fpcomplete.com/ubuntu yakkety Release' is not signed
85250
Skipping acquire of configured file 'xxxx' as repository 'xxxx xenial InRelease' doesn't support architecture 'i386'"
59119
apt-get, unmet dependencies, ... "but it is not going to be installed"
3298
How do I resolve unmet dependencies after adding a PPA?
98450
How to install build-essential?
2670
Why is "No new release found" when upgrading from a LTS to the next?
120713
Release file does not exist
22164
Problem with sudo apt get update: The repository cdrom... does not have a Release file