Unreal Engine Fails to Launch/Build Executable

[Linxmas]

Also eventually figured it out myself.
Just deleted Source folder in project, just had empty c++ class created (that was the packaging issue) and all the safe to delete folders from this list:

Folders safe to delete to recompile everything

I want to recompile everything from the project (classes, shaders…) as the project had many changes. When I’m building the project for shipping form I even get a warning saying that a file is old or something like that and I should delete it. And to do that I want to delete every file that is created either by building the project or when it is cooked. So which of the following folders can be deleted so they are recreated by UE (some I know can be deleted and recreated by using Generate Visual S…