This is what it says:
An ocurred, please run Package Manager from right-click menu or apt-get in a terminal to see what is wrong. The error message was:
Error:Opening the cache(E:Encountered a section with no Package:header,
E:Problem with MergeList/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_raring_security_multiverse_i18n_Translation-en
E:The package lists or status file could not be parsed or opened.)'.
This usually means that your installed packages have unmet dependencies
I tried the following:
sudo rm /var/lib/apt/lists/* -vf
sudo apt-get update
But still I have not fixed it. Any idea how to fix it?