I try to install languages on my ubuntu 12.04. Unfortunately, it is not working, I only get info: "Software database is broken. It is impossible to install or remove any software. Please use the package manager "Synaptic" or run
sudo apt-get install -f. in a terminal to fix this issue at first"
I did try to use this command and many other, without success. Any command that I run basically does not detect anything and I still cannot use German keyboard layout. Anyone out there that could help? Ubuntu is really overwhelming..