I downloaded unity with free version. I created new project in Unity. Then right click import .unitypackage. Then i followed below step:
- Delete the “Main Camera” in your current scene hierarchy, and drag an instance of the ARCamera prefab into your scene. The ARCamera is responsible for rendering the camera image in the background and manipulating scene objects to react to tracking data.
When i was dragging ARCamera to scene i got this error. Otherwise i didn't get this error. Why?