OpenVR initialized but not connected to VR device

This is my settings;

• SteamVR 1.2.1
• SDKs loaded; None, OpenVR

When I start the game without VR, when I want to load the VR, I ran

And it outputs "OpenVR initialized!" but my htc Vive is still not inside in the unity game.



How can I get the VR be connected to [CameraRig]?