I'm using Ubuntu 12.04 LTS. When I try to install Quantum GIS, I'm shown with the following error:
Reading package lists... Done
Building dependency tree
Reading state information... Done
qgis is already the newest version.
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
qgis-plugin-grass : Depends: grass642
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
I'm tried cleaning the package list (sudo rm /var/lib/apt/lists/* ) and updating it again, but still the problem didn't go.