is there a solution

[uy_t8]

I have selected the game file but the error occurs again

[notMeks]

You need to select the folder your game is in, not just a file. So your BO2 or MW3 folder or whichever game you're trying to play.

[FutureRave]

uy_t8 Yes, it's spelt at the bottom of the error message. I guess you didn't see that one coming.