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Re: Sims3 Base Game "unknown error occurred" upon launch, MacOS High S

by puzzlezaddict

Original Post

Sims3 Base Game "unknown error occurred" upon launch, MacOS High Sierra

★★★★ Newbie

Hello everyone,


i have question for you and need your help. I dowloaded TS3 and packages from origin. However, my game gave " unknown occured" problem with the university life pack. Is there anyone who has an idea about the solution of it? 

Message 1 of 2 (130 Views)

Re: Sims3 Base Game "unknown error occurred" upon launch, MacOS High S

If you have installed any of Ambitions, Late Night, Fast Lane, or Outdoor Living, the files from the pack or packs likely did not get copied to their proper destination.  You can do so manually by following the instructions in this video:


It would also be a good idea to patch the game using the digital download version of the Super Patch.  If one or more packs are not showing as installed in your Applications folder, you can manually add an alias as well.


If the Unknown Error message persists, it may be that your graphics card is incompatible with TS3.  Unfortunately, some processor/graphics card combinations make playing TS3 particularly difficult, if not impossible.  Compounding the problem is the fact that all new versions of mac OS starting with Mountain Lion have been incompatible with the game, although that does not prevent people from playing on certain computers.


If you try the above solutions and they don't work, please post your computer's specs and which packs you've installed so that someone can offer more specific advice.


I don't work for EA. I'm just trying to help fellow players with their games.
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