"apt-get update" gives an error
65
What can I do if a repository/PPA does not have a Release file?
21382
What does "sudo apt-get update" do?
93942
How to fix "Failed to download repository information" error while updating?
118661
How to solve apt "package cannot be configured because package is in a different version" errors?
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?
103929
sudo apt upgrade error 18.04 (Broken Packages)
87672
Apt-Get system completely broken. possible to completely reinstall it?
16578
How to upgrade a single package using apt-get?
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
72082
Is using Software Updater the same thing as running apt-get update and apt-get upgrade?
147407
Apt-get fails on 16.04 or 18.04 installing mongodb
27769
Problem with IPv6 sudo apt-get update/upgrade
157289
Why use apt-get upgrade instead of apt-get dist-upgrade?
59119
apt-get, unmet dependencies, ... "but it is not going to be installed"
95593
sudo apt-get update returns an error
11671
"Unable to locate package" while trying to install packages with APT
63363
apt-key is deprecated