Help On error Please

Can anyone Help me with this error :

NullReferenceException: Object reference not set to an instance of an object Boo.Lang.Runtime.RuntimeServices.Dispatch (System.Object target, System.String cacheKeyName, System.Type[] cacheKeyTypes, System.Object[] args, Boo.Lang.Runtime.DynamicDispatching.DispatcherFactory factory) Boo.Lang.Runtime.RuntimeServices.Dispatch (System.Object target, System.String cacheKeyName, System.Object[] args, Boo.Lang.Runtime.DynamicDispatching.DispatcherFactory factory) Boo.Lang.Runtime.RuntimeServices.SetProperty (System.Object target, System.String name, System.Object value) ResPlaye1.Update () (at Assets/ResPlaye1.js:21)

here is the script:

var spawnPlayer1 : Transform; //drag your spawn point to here in the inspector - probably make it an empty gameobject so you can move it about on the diving board

  //var MainPlayerPlayer2: GameObject;

  var NewPlayerPrefab2 : Transform;

  var MainPlayer11 : GameObject;


   var MainCube : GameObject;

   var MainBodyTrue: GameObject;

   var MainHairTrue: GameObject;



    function Update()
    {

    if(Input.GetKeyDown(KeyCode.M)){

 MainCube.SetActiveRecursively(false);
                                       Instantiate(NewPlayerPrefab2,spawnPlayer1.position,spawnPlayer1.rotation);

 MainHairTrue.SetActiveRecursively(true);

 MainBodyTrue.SetActiveRecursively(true);

         GetComponent(NewMoveScript).active = true; // This line is causing the problem ?

        }    
         }