@tomerd: Are your changes somehow "available" yes? I still get stuck with a message like:
C:\Users\stefan\AppData\Local\Temp\TemporaryDirectory.eK9Mr0\swiftxml-manifest.exe -handle 414
At that moment that directory does not exist any more, so maybe the problem is at some later step.
I now re-installed Windows and VS and Swift in different versions again and again, not once did my project get built, the same project that always gets built on macOS and CentOS 7. I really do not know what to do. Any help?