MRTKでコントローラーのポジションをとって、VRコスプレのための手の位置にしたいけどできない

winMR_controller_position.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
#if UNITY_WSA && UNITY_2017_2_OR_NEWER
using System.Collections.Generic;
using UnityEngine.XR.WSA.Input;
#endif
namespace HoloToolkit.Unity
{
    public class position : MonoBehaviour
    {
        public GameObject left;
        public GameObject right;
#if UNITY_WSA && UNITY_2017_2_OR_NEWER
        private class ControllerState
        {
            public InteractionSourceHandedness Handedness;
            public Vector3 GripPosition;
            public Quaternion GripRotation;
    
        }

        private Dictionary<uint, ControllerState> controllers;
#endif

       
        // Use this for initialization

        private void InteractionManager_InteractionSourceUpdated(InteractionSourceUpdatedEventArgs obj)
        {
            ControllerState controllerState;
            var state = obj.state;
            if (state.source.kind == InteractionSourceKind.Controller)
            {


                Vector3 GripPosition;
                Quaternion GripRotation;

                //コントローラ本体の情報を取得
                state.sourcePose.TryGetPosition(out GripPosition, InteractionSourceNode.Grip);
                state.sourcePose.TryGetRotation(out GripRotation, InteractionSourceNode.Grip);

                if (controllerState.Handedness.Equals(InteractionSourceHandedness.Left))
                {

                    left.transform.position = controllerState.GripPosition;
                    left.transform.rotation = controllerState.GripRotation;
                }
               else if (controllerState.Handedness.Equals(InteractionSourceHandedness.Right))
                {

                    right.transform.position = controllerState.GripPosition;
                   right.transform.rotation = controllerState.GripRotation;
                }

            }


        }
    }
}