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Steam NEED HELP! "The directory name is invalid (0x10B)" Cannot run game on steam.

Hey guys,
I'm trying to get my game to run on steam but every time I install to play it comes up with the error "failed to start process , The directory name is invalid (0x10B)".
the appbuild and depotbuild are correct, it all connects to steamworks correctly, the build is set to default and the depot is all correct, general installation is correct with no misspellings and for good measure the build has been published. still this error persists.
does anyone have a clue as to whats going on and if someone could be awesome, send me a video of them Setting up there GM:studio game to run on steam as I'd need to see how it all works correctly).

GM version : Gamemaker Studio v1.4
Steamworks SDK: sdk 135a