ubuntu-desktop:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
vlc : Depends: vlc-nox (= 1.1.4-1ubuntu1.5) but 1.1.4-1ubuntu1.4 is installed
vlc-plugin-notify : Depends: vlc-nox (= 1.1.4-1ubuntu1.5) but 1.1.4-1ubuntu1.4 is installed
vlc-plugin-pulse : Depends: vlc-nox (= 1.1.4-1ubuntu1.5) but 1.1.4-1ubuntu1.4 is installed
E: Unmet dependencies. Try using -f.
ubuntu-desktop:~$