Unreal 4.17.1 Source Build fails in VS17

Every time i try to build the source engine from GitHub i get Several Errors.
Tryed it around 5 times and followed all the stuff in the documentation.
I just dont know what Im doing wrong. Please help me.

Please does anyone know about that and maybe even how to fix it?

I have the same if I use a VS2017 project (GenerateProjectFiles.bat -VS2017). With a VS2015 project (GenerateProjectFiles.bat without additional arguments) the build is successful.

An Update from Unreal fixed this Problem. Think it was 17.2