Creating ECS/DOTS VR Character Controller

Hi,
I’m trying to set up VR with ECS. And I’m following the tutorial: Setting Up Unity XR For ECS - WireWhiz

but sadly I get “Object reference not set to an instance of an Object” Error
I did everything step by step… did any1 managed to get it working

to be more specific. the Error came only on launching the build.
in the editor everything works fine

Are you creating a project to build on Quest 2 or Pc VR?

Hi
I’m building a pc VR using the Oculus Rifts