OVRCameraRig in oculus integration package is not playing in oculus 2

I made a simple scene using OVR CameraRig in oculus integration assets following the link below. https://skarredghost.com/2019/06/08/how-get-started-oculus-quest-development-unity/

After I added OVRCameraRig, I played with my oculus 2 headset and it is not playing. I found no error at the console page and everything is updated in a newest version including unity and quest integration assets.