I can't install ubuntu-restricted-extras
728
Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
132293
If I can, how do I install Ubuntu from Ubuntu?
4448
How do I install applications in Ubuntu?
47808
"The following packages were automatically installed and are no longer required:" what to do?
74763
Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution)
12577
How can I customize the Ubuntu installer?
3298
How do I resolve unmet dependencies after adding a PPA?
32426
How to install packages?
138386
Can I install items on Ubuntu, without using the command line?
67365
How to install another Ubuntu alongside different version of Ubuntu?
118978
Not all updates can be installed: partial upgrade
64546
How to forbid a specific package to be installed?
30754
Cannot update: "No available releases found"
118543
How can I install a package without installing some dependencies?
115856
Can I install Ubuntu from an ISO file on Windows?
117852
"Package dependencies cannot be resolved" error when installing software
134143
How do I know what packages I need to install?