OVRTouchpad.TouchHandler doesn't exist.

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class Teleporter : MonoBehaviour {

    public GameObject TeleportMarker;
    public Transform Player;
    public float Raylength = 50f;


    void Start()
    {
        OVRTouchpad.Create();
        OVRTouchpad.TouchHandler += TouchpadHandler;
    }

    void Update()
    {
        Ray ray = new Ray(transform.position, transform.forward);
        RaycastHit hit;
        if(Physics.Raycast(ray, out hit, Raylength))
        {
            if(hit.collider.tag == "floor")
            {
                if (!TeleportMarker.activeSelf)
                {
                    TeleportMarker.SetActive(true);
                }
                TeleportMarker.transform.position = hit.point;
            }
        }
    }

    void TouchpadHandler(object sender, System.EventArgs e)
    {
        OVRTouchpad.TouchArgs args = (OVRTouchpad.TouchArgs)e;
        if(args.TouchType == OVRTouchpad.TouchEvent.SingleTap)
        {

        }
    }
}