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Bluebellflora's avatar
Bluebellflora
Hero+
10 years ago

Re: macOS thread - updated to include 10.15 Catalina

macOS Sierra 10.12

Issue:

The game will not load or the Unknown Error message is popping up since updating to Sierra 10.12

Try:

  1. Dragging your Sims 3 folder from Documents > Electronic Arts onto the desktop and then relaunch your game. The folder will be recreated and your game will be free of all previous saves/downloads/CC/mods/settings etc.
  2. Creating a new user account on your Mac, log into it and try playing the game
  3. Last resort - properly uninstall and reinstall the game (making sure to get rid of ALL files and folders mentioned in the help article

6 Replies

  • Anonymous's avatar
    Anonymous
    9 years ago

    I have Sims 3 as well as the late night and generations expansion packs and custom content. I've had these for several months but now my game has started acting weird. It would get to the page where you pick your family and it would say "Disc Authorization Failure, contact customer service". I read a few forums and they recommended uninstalling the games and reinstalling them using origin. So I did as instructed and now the game won't even load and it'll say "an unknown error has occurred". I've tried everything, restarting my computer, checking for viruses, deleting my custom content, etc. Nothing works! I've had my friend log into my origin account and it works on her computer but not mine...

    Here is some info about my MacBook: 

    It's a MacBook Pro (mid 2012) 

    it's running on macOS Sierra (Version 10.12.1)

    Processor: 2.3 GHz Intel Core i7

    Memory: 4 GB 1600 MHz

    Graphics: NVIDIA GeForce GT 650M 512 MB

                     Intel HD Graphics 4000 1536 MB

  • Anonymous's avatar
    Anonymous
    9 years ago

    I only have Sims 3, Late Night, and the Loft stuff expansion, however I currently only have the original sims 3 installed. When i got to open the game, it says unknown error occurred. This problem only started after the installation of macOS Sierra.

    Macbook Air

    1.4 GHz Intel Core i5

    4 GB 1600 MHz DDR3

    Intel HD Graphics 5000 1536 MB

  • Anonymous's avatar
    Anonymous
    8 years ago

    i have the exact same mac and graphics and i only had the base game installed and i could run it only once, second time i tried to play the game it said unknown error ☹️ it makes me super sad idk what to do

  • Anonymous's avatar
    Anonymous
    8 years ago

    thank you, ill try this, but the weird thing is that it says that it affects 2013 or newer macs and i have a mid 2012 macbookpro. 

  • Bluebellflora's avatar
    Bluebellflora
    Hero+
    8 years ago
    @pearlcoffin

    Your Mac has supported graphics so you can ignore the graphics fix.

    If you read the thread Tremayne linked to you will see that there are other workarounds to try. You will also get a better understanding of why you may not be able to play as the game does not support later versions of macOS.

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