if you have multiple versions of a package and there is a conflict of dependencies on your system.
It might happen that you wont be able to install anything or do an apt-get autoremove or apt-get –f install or apt-get install any thing.
You can copy the package status file
$cp /var/lib/pkg/status /backup loc
Now $ leafpad /var/lib/dpkg/status
Edit the controversial package, make sure you maintain the syntax else you will get parse error
while running apt-get again from cmdline.
Remove the dependencies for a while, we can do an apt-get update/install later on.
Once you have removed the problematic entry, for example the package or its dependency which was creating the problem.
Run the apt --fix-broken install –f again and apt-get update after this.
