Comment 14 for bug 1292118

I finally got my VMs working... someone in Oracle needs to know that the PPA information they have is wrong (an error in one of the files Ubuntu looks to for setup information).

You need to physically download and install the latest version (after doing a basic removal of the old version - don't do a complete removal). Trying to keep the software updated by PPA won't work until the error on their end is fixed (as I remember, a missing source.list in the setup file).