Source Version Build Errors

Hi, So ive been trying to use the source version of the unreal engine, i have been following a guide ( Building Unreal Engine from Source | Unreal Engine Documentation ) to try to use it.

Whenever i build it visual studio gives me these errors ( Please refer to the image). It’s been happening for a couple days as i keep trying and dont know what to do.

Any Help would be greatly appreciated. Thanks!