Error: "Package not available" for a package that should be current
50317
How do I reinstall a base-R package (e.g., stats, graphics, utils, etc.)?
21062
dpkg: error: parsing file '/var/lib/dpkg/available' near line 0
4268
How to fix "Package is in a very bad inconsistent state" error?
32426
How to install packages?
56150
Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
66065
"Unable to connect" error with apt-get?
115722
Apt sources.list problem , packages not found?
35231
Install package from CTAN which is not available in TeX Live
43579
I cannot install new packages: "Could not get lock /var/lib/dpkg/lock"
137603
MiKTeX package manager: service unavailable
76165
Unmet dependencies: not configured yet
30754
Cannot update: "No available releases found"
123958
How do I search for available packages from the command-line?
140793
Problem installing a package
45993
How to keep up with packages and know which ones are obsolete?
93827
Unable to locate package libsystemd-dev
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?