XR: OpenVR Error! OpenVR failed initialization with error code VRInitError_Init_PathRegistryNotFound

problem description

when I was running the scene in Unity, the following error occurred: ‘VR: OpenVR error! OpenVR initialization failed, error code VRInitError_Init_PathRegistryNotFound: “Installation path (110) cannot be found!”

problem cause

MRTK tools were used in the

project, but

was not introduced in the unity scenario

solution