Playmode doesn't work for Hololens 2

Hello! I'm new with Unity and I have a problem. I have Hololens 2 and I want to work with it in playmode but, I have this error when I press "play": CameraOffset.SetupCamera: Attempting to set the tracking space to Floor, but that is not supported by the SDK. I suppose that I didn't set up Unity correctly even thought I followed the instructions from site. Can you guys tell me how to do this correctly?