Problem in script when changing the platform.

Hello guys Here I have a script which works perfectly on standalone platform but when I changed my platform to Windows Store it shows the error below.

and here's my code

 var target : Transform;
 var distance = 10.0;
 public var dragControl:boolean=true;
  
 var sensitivityX: float = 10.0;
 var sensitivityY: float = 10.0;
  
 var viewerYmin = 0.8;
 private var yMinLimit: float = 0;
 var yMaxLimit = 80;
  
 var distanceMin: float = 3;
 var distanceMax: float = 15;
  
 private var x: float = 0;
 private var y: float = 0;
 private var y0: float = 0;
 
 //<--descend var
 private var startTime: float = 0;
 private var startAngle: float = 0;
 private var descending: boolean = false;
 //descend var-->
 private var i1: int = 0;
 
 //@script AddComponentMenu("Camera-Control/Mouse Orbit")
  
 function Start () {
     Init ();
     descending = false;
 // Make the rigid body not change rotation
     if (GetComponent.<Rigidbody>())
         GetComponent.<Rigidbody>().freezeRotation = true;
 }
  
 function LateUpdate () 
 {
     if (target) 
     {
             if(dragControl||(!dragControl&&Input.GetMouseButton(1)))
             {
                 x += Input.GetAxis("Mouse X") * sensitivityX * distance;
                 y -= Input.GetAxis("Mouse Y") * sensitivityY * distance / 2;
             }
             yMinLimit = - yMaxLimit;
             //yMinLimit = - Mathf.Rad2Deg * Mathf.Asin((target.position.y - viewerYmin)/distance);
             y = ClampAngle(y, yMinLimit, yMaxLimit);
            
         var localrotation = Quaternion.Euler(y, x, 0);
             
         distance = Mathf.Clamp(distance - Input.GetAxis("Mouse ScrollWheel")*5, distanceMin, distanceMax);
 
         var hit : RaycastHit;
         if (Physics.Linecast (target.position, transform.position, hit)) 
         {
                //distance =  hit.distance;
         }
        
         var position = localrotation * Vector3(0.0, 0.0, -distance) + target.position;
         
         transform.rotation = localrotation;
         transform.position = position;
    
     }
 }
 
  
 static function ClampAngle (angle : float, min : float, max : float) {
     if (angle < -360)
         angle += 360;
     if (angle > 360)
         angle -= 360;
     return Mathf.Clamp (angle, min, max);
 }
 
 
 function Init ()
 { 
 angles = transform.eulerAngles;
 x = angles.y;
 y = 30; 
 }

Guys please help me how to fix this.Iam a newbie to scripting please help me.

THANKS in advance