I am using emacs 24.3 on Ubuntu 12. I installed the auto-complete package through the emacs built-in package manager, and it mostly worked. The quick help feature was however missing. I found this thread https://github.com/auto-complete/auto-complete/issues/65 descibing the same problem, so tried to copy the .el files from here, into the auto-complete directory created by the package manager. Now nothing works, and the package manager says: auto-complete is a deleted package. Status: Deleted.
I can't remove it, or reinstall it... Any help is appreciated. Also help on how to fix the quick help feature :D