Ultimate fix help: Required game data missing? [SOLVED]

Hi there, I am having a bit of a problem with the latest ultimate fix. The last ultimate fix I had up until this point was the pools one, I went to upgrade. I...

- Disabled virus/any protection software (I only have Windows Firewall...)
- Extracted with WinRar
- Copied files to (C:\Program Files\etc). 

But when I tried to play the game, I get the warning "Unable to start: Cannot start because required game data is missing or damaged. Please try reinstalling the game." 

Then, I tried uninstalling and reinstalling Sims 4 through G4TW site which worked fine. It was only when copying files for the new ultimate fix that I had an error. When I copy back the initial files, it starts working again. 

Anyone know what might be going on? Really would love to play w/ the new careers and world >:

EDIT After several hours, I've finally figured it out. Instead of copying the new folders directly over and replacing the old ones, I would copy the old files to the desktop and then copy the new files over as "just in case". Apparently, the files needed to replace the old ones directly. Hopefully this might be able to help anyone who was having the same problem as me 

Hi there, @shapoopie!

Thanks for letting us know how you fixed the issue!
It will most certainly help us in the future.

Problem solved, topic closed. If you ever need anything else, don't doubt to come back. Have fun!