Photonview "this" does not exist in current context

I’m new to Photon and I have tried searching for answers everywhere but could not find any
So I have this error on this line of code
Error:Keyword `this’ is not available in the current context

Here is the line that has the errorPhotonView photonView = PhotonView.Get(this);

Here is the entire script`using UnityEngine;
using System.Collections;

///
/// This script is attached to the player and it
/// ensures that every players position, rotation, and scale,
/// are kept up to date across the network.
///
/// This script is closely based on a script written by M2H.
///

public class MovementUpdate : MonoBehaviour {

//Variables Start___________________________________

private Vector3 lastPosition;

private Quaternion lastRotation;

private Transform myTransform;

PhotonView photonView = PhotonView.Get(this);

//variables End

// Use this for initialization
void Start () 
{
	if(photonView.isMine == true)
	{
		myTransform = transform;
		
		
		//Ensure that everyone sees the player at the correct location
		//the moment they spawn.
		
		photonView.RPC("updateMovement", PhotonTargets.OthersBuffered,
		                myTransform.position, myTransform.rotation);
		
		
	}
	
	else
	{
		enabled = false;	
	}
}

// Update is called once per frame
void Update () 
{
	//If the player has moved at all then fire off an RPC to update the players
	//position and rotation across the network.
	
	if(Vector3.Distance(myTransform.position, lastPosition) >= 0.1)
	{
		//Capture the player's position before the RPC is fired off and use this
		//to determine if the player has moved in the if statement above.
		
		lastPosition = myTransform.position;
		
		photonView.RPC("updateMovement", PhotonTargets.OthersBuffered,
		                myTransform.position, myTransform.rotation);
	}
	
	
	if(Quaternion.Angle(myTransform.rotation, lastRotation) >= 1)
	{
		//Capture the player's rotation before the RPC is fired off and use this
		//to determine if the player has turned in the if statement above.	
		
		lastRotation = myTransform.rotation;
		
		photonView.RPC("updateMovement", PhotonTargets.OthersBuffered,
		                myTransform.position, myTransform.rotation);
	}
}


[RPC]
void updateMovement (Vector3 newPosition, Quaternion newRotation)
{
	transform.position = newPosition;
	
	transform.rotation = newRotation;
}

}
`

Using this one works for me:

MyClass: MonoBehaviourPunCallbacks