Unable to locate VLC package in my repositories?
64795
Unable to install VLC
107053
VLC shows very big icons and is unusable
20472
How do I enable the "partner" repository?
34069
Why am I getting authentication errors for packages from an Ubuntu repository?
12773
The requested package is unknown
10193
Failed to download repository information due to missing CDROM
22624
Unable to locate package kubuntu-plasma5-desktop on 14.04
79410
How do I find out which repository a package comes from?
154248
How to see all packages in a package repository? Website or command line?
41519
What can I do if a package is not available on the newest version of Ubuntu (18.04) but is available on older versions?
9841
How can I fix "E:The package linux-modules-5.4.0-56-generic needs to be reinstalled, but I can't find an archive for it."?
119323
"Unable to locate package" errors for all software
339
How to resolve "Failed to download repository information"?
4450
How can I reproduce the error "package... needs to be reinstalled, but I can't find an archive for it" for testing?
133
How can I fix a 404 Error when using a PPA or updating my package lists?
116
How do I find the package that provides a file?
144022
How to install a package from a local repository?