Base game incompatibility and launcher version glitch

When updating The Sims 3 to the latest patch you may experience the Launcer reading your game versions as 0.0.0.0 or get a pop-up message saying: 'Base Game Incompatibility'. This is apparently a recurring problem when updating as it is posted on TheSims3.com whenver they release a new patch.

It was first posted as a sticky on June 14, 2010 by SimGuruPopTart at the technical forum and has since been bumped up when EA released a new patch.