Problem building development server. "Couldn't find target rules file for target 'UE4Server'" in rules assembly 'UE4Rules'

Development Programming & Scripting
1

I have made Reddit thread about my problem, i will link it to here: https://www.reddit.com/r/unrealengine/comments/ae55r0/problem_building_development_server_couldnt_find/

2

I think i found out that i don’t have UE4Server files:

ERROR: System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Program Files\Epic Games\UE_4.20\Engine\Intermediate\Build\Win64\UE4Server\Development\Launch\Launch.precompiled'.
3

I posted my SOLUTION on that Reddit Link.

Also i had problem running GenerateProjectFiles.bat, but i fixed it by opening Visual Studio installer and installed “.NET Desktop development”