This is a frustrating issue, but I suggest that before you spend hours un-installing re-installing and messing around with your registry and such try clearing the game cache files first.
1) Go into your main boot drive and go into the Users folder - find the folder matching your account name and go in.
2) Once inside go into: Electronic Arts / The Sims 3 / DDCache
3) Delete missingdeps.idx
Then finally, cross your fingers, and try running the launcher after this. Good luck!
I was just about to give up and tried your solution. Thank you! This worked for me. For me it was under Libraries/Documents/Electronic Arts. Now it lets me go to the launcher to update the game.
Mine was under Libraries/Documents/Electronic Arts but then when I click on the sims 3 game there is nothing in the folder.
Any ideas? What do I do?
