Okay so i've spent a week on trying to figure this out and i've finally find the solution

Not only do you have to download scripthookV but you also need scripthookV.net for it to work. When you have done that, you should be able to launch the game, though i've personally experienced some FPS loss in some areas of the game, but i think that's on my end. Anyways i know this thread is quite old but i just wanted to put a solution that worked for me out there in case there's someone else with this problem and still want to use the reshade

-Linen