How can I prevent the "unable to resolve repository" apt installation failure?
8873
Configure proxy for APT?
144022
How to install a package from a local repository?
84988
apt-get build-dep is unable to find a source package
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
142954
bunch of errors during any installation witn any utility apt, apt-get, synaptic, etc
90937
apt-get update errors
67149
How can I install apt packages non-interactively?
34069
Why am I getting authentication errors for packages from an Ubuntu repository?
118754
Package dependencies cannot be resolved
96696
timeout errors in apt-get update/install
1520
How to install software or upgrade from an old unsupported release?
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?
83924
error while trying to sudo apt-get update GPG, no sign repository
73173
How to Fix Broken Packages?
137317
libdvd-pkg: `apt-get check` failed, you may have broken packages. Aborting
10633
software updater failed to download repository information
66744
Apt "Connection failed"