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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?