Modular Building failed

When I set LinkType to TargetLinkType.Modular in my Game.Target.cs this error occures:

Inputfile "C:\Program Files\Epic Games\UE_4.21\Engine\Intermediate\Build\Win64\UE4\Development\Core\UE4-Core.lib" can not been opened.

I looked for that file and even does not exist. I’ve already verified the installation from the Epic Games Launcher but still no file. Where do I get that file from?