14.04: Unable to locate package mesa
11671
"Unable to locate package" while trying to install packages with APT
73357
Every package "has no installation candidate"
28650
`apt-get update` cannot find Ubuntu servers
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
86777
Distribution upgrade problem "No new release found"
30304
Shows "unable to locate package unzip" error
102441
Having trouble with apt-get upgrade and removing KDE Plasma
53498
How do I find packages to install via apt-get
77923
'apt-get' always fails with ERROR 404: Not Found over a package (flashplugin-downloader)
12534
14.04 --> 16.04 failed; apt (>= 1.0.1ubuntu2.13)' is not installed
16186
Requires installation of untrusted packages?
69489
How do I figure out what package something is in without resorting to Google?
98545
Unable to locate package lib32bz2-1.0
102708
Apt "could not find a distribution template" error
119943
Where can I find a repository for older unsupported releases?
84988
apt-get build-dep is unable to find a source package
144022
How to install a package from a local repository?