I upgraded from 12.04.1 to 12.10 via the Update Manager and the upgrade said it completed successfully, however after rebooting the Unity task bar was missing along with the launch bar and the window decorations.
All compiz settings seemed to be purge deleted, and at first boot it gave me a system error. The desktop exists, and once I remember I messed up the compiz settings and just had to press Ctrl+Alt+F1 and in the virtual terminal type
unity --reset then
Everything worked as if I reinstalled the entire operating system. This time it said:
Warning no variable set. setting to :0. The reset option is now dupricated.
What am I suppose to do now? I need this fixed as soon as possible because I need a couple of certainly installed programs and the data within them (long story short).