@rellietay I'm not exactly sure where you are in the process—as in, what's currently installed and what isn't—but I can see why you kept getting unknown errors. In addition to creating an alias for each pack that doesn't have one, which it sounds like you handled fine, you needed to copy files (per corey's instructions) from your problem packs into the folder for the newest pack by release date. WA is the oldest pack. So after you had Ambitions running and then installed Late Night, the files for Ambitions needed to go into LN's folder.
If you don't want to start over yet again, I'd suggest copying the files for Ambitions into the folder for IP and trying to launch. This is assuming you did a clean uninstall of LN; if LN is installed, copy its files into IP's folder as well. Then run the Super Patch again.
If this doesn't work, the last thing you can try before yet another clean uninstall is to install all of your packs, create aliases where necessary, and make sure that the folder for IP has files from all of your other installed packs. If it doesn't, copy them as corey's video describes.
I know this is frustrating, but if you can launch the patched base game, you can get your packs installed correctly. But speaking of frustrating, igazor is right—TS3's RAM limit is much more difficult to manage in Mac OS than it is in Windows. With only a few expansion packs, and just one of the most demanding (Pets, Seasons, and ITF are the three ahead of IP), you might well be able to stay under 2 GB memory while you play, at least for a couple of hours at a time. You can monitor the game's RAM use in the Activity Monitor and purge memory to free up a bit here and there, but the only way to reset memory use completely is to quit to desktop and relaunch.
https://bluebellflora.com/resetting-ram-during-gameplay/
But many of us, myself included, have ended up Bootcamping our Macs to get around the memory limit. It was igazor's insistance that playing in Windows would be so much better than convinced me to finally do so, and he was absolutely right.
And for the record, Bluebellflora is the one who's figured most of this out. I just do what she tells me.
Edit: I should add that 8 GB RAM total is more than enough for the game, but if you're running other apps in the background, your computer might run out of memory. Mojave is a memory hog, and so are certain browsers, Chrome in particular. So it's a good idea to launch the game immediately after you restart your Mac and keep background tasks to a minimum while you play.
