Error when Compiling engine source Integrated with VXGI Downloaded from GitHub

Hello
i have downloaded UnrealEngine-VXGI-4.14 from GitHub
Zip file size: 884,222 KB
i run “GenerateProjectFiles.bat” as admin and it shows me this error:

Setting up Unreal Engine 4 project files…
GenerateProjectFiles
ERROR: It looks like you’re missing some files that are required in order to generate projects. Please check that you’ve downloaded and un packed the engine source code, binaries, content and third-party dependencies be fore running this script.
Press any key to continue . . .

How can i fix this?
Thanks in advance…

Run Setup.bat first.

Thank You.