I'm also having a similar problem. Doesn't see to have any impact though. Just a pop up that I can click cancel or continue or just close the box and the game then starts and runs fine.
I did a steam game verification and it didn't help. I was in the beta and updated to the release version on steam. After updating I got this pop up.
The drive it is asking for doesn't exist on my system.
Last edited by ethion; 17/09/17 06:02 PM.