Launcher set game dir doesnt work.

I downloaded BD from the official page and when i set the gamez dir to the folder where the game is located this error pops every time: Input string was not in a correct format.
I already have the vcredsit 2013 86 and 64. I thought that it was possible to download the game from the official page and then just use the launcher. Specially because the download speed of the launcher is terrible.
And yes i downgraded the game to work with gamez.

 

You probably corrupted your file. Was there any instances that you closed the launcher when it was downloading the files. If so then its probably a corrupted file.
You can also try downloading a new launcher.
I also came across this problem, so i reinstalled the game, and my launcher and it seemed to fix it