Null Reference Exception for target in a script on a newly instantiated object

What I'm trying to do is spawn an enemy and create a marker/blip on the Minimap for the spawned enemy. I get a NullReferencException at line BlipCtrl:29.

The Blips on the Minimap have a Target GameObject which position reflects the position of the Blip on the Minimap. When an Enemy is instantiated I set it to have a unique name. I'm having trouble writing a function the sets the Target of the Blip to the GameObject with the Unique name that the Blip gets it's position and rotation from.

Spawner.js

 public var enemy : Rigidbody ;
 private var spawnValues : Vector3 = Vector3(50, 1, 50);
 public var enemycount : int ;
 public var enemyId : int;
 static var enemiesarray = new Array();
 public var blipcontroller : BlipCtrl; 
 
 var spawnPosition : Vector3;
 var spawnRotation : Quaternion;
 
 
 function Start () {
 var blipcontroller = GetComponent("BlipCtrl");
     SpawnWaves();
     
     
 }
 
 function SetName () {
     enemy.name = "Enemy#" + enemyId++;
 }
 
 function SpawnWaves() {
     for(var i = 0; i < enemycount; i++) {
         var spawnPosition : Vector3 = new Vector3(Random.Range(-50, 50), spawnValues.y ,Random.Range (-50, 50));
         var spawnRotation : Quaternion = Quaternion.identity;
         SetName();
         Instantiate(enemy, spawnPosition, spawnRotation);
         enemiesarray.Push(this.enemy);
         blipcontroller.CreateBlip(enemy, spawnPosition, spawnRotation);
     }
 }

BlipCtrl.js

 public var EnemyBlipImage : Rigidbody;
 public var bliparray = new Array();
 public var blipID : int;
 public var map : Minimap;
 private var blipTarget : Blip;
  private var gameobject : GameObject;
  static var target : Transform;
  var newBlip : GameObject;
  
 function Awake () {
 blipTarget = GetComponent(Blip);
 map = GetComponent(Minimap);
 
 }
 
 function SetName() {
 EnemyBlipImage.name = "EnemyBlip#" + blipID++;
 
 }
 
 
 function CreateBlip(object, objectName, position , rotation) {
 SetName();
 var newBlip = Instantiate(EnemyBlipImage, position, rotation);
 newBlip.transform.SetParent(map.transform);
 newBlip.gameObject.tag = "Enemy" ;
 gameobject = GameObject.Find(objectName + "(Clone)");
 blipTarget.target = gameobject.transform;
 blipTarget.SetTarget(gameobject);
 }

Blip.js

    #pragma strict
  public var target : Transform ;
  public var keepInBounds = true;
  public var LockScale = false;
  public var LockRotation = false;
  private var map : Minimap ;
  private var myRectTransform : RectTransform ;
  
  //set target to gameobject
 function SetTarget(gameobject) {
  target = gameobject;
 }
 
 function Start () {
      map = GetComponentInParent(Minimap);
     myRectTransform = GetComponent(RectTransform);
 
 }
 
 function Update () {
 
 }
 
 function LateUpdate() {
      var newPosition : Vector3 = map.TransformPosition(target.position);
      
      if(keepInBounds) {
      newPosition = map.MoveInside(newPosition);
      }
      
      if(!LockScale) {
      myRectTransform.localScale = new Vector3(map.zoomLevel, map.zoomLevel, 1);             
      }
      if(!LockRotation) {
      myRectTransform.localEulerAngles = map.TransformRotation(target.eulerAngles);
      }
      
      myRectTransform.localPosition = newPosition;
          
 }