I've seen multiple posts with this problem, although some links in those posts are broken, as they go nowhere (or to deleted posts)
Title says it all pretty much, i have the latest version of the mod installed and am running the latest version of the game, not the beta versions.
I tried reinstalling, changing game versions, rebooting my PC, but nothing seems to work.
If anyone has found a solution to this, please let me know.
EDIT: Yes i am using the correct version of the game on steam, and i am using the right installation path, since i copied it from the steam properties. (Also any other path than that one gives an error)