Question by Jakesie · Oct 15, 2012 at 09:30 AM · trigger nullreferenceexeption

Instance error on trigger

Hi there, I want to usea simple object that I've attached to a prefab. However, I cannot get it to work correctly, as it keep giving me an error.

My script: var target: Transform;

 public function Start (){
     if (target == null && GameObject.FindWithTag("Player"))
     target = GameObject.FindWithTag("Player").transform;
     }
     
 function OnTriggerEnter() {
     if(target.GameObject.FindWithTag == "Player"){
     collider.isTrigger = true;
     print ("Triggered");
     }
 }

and the error message is this:

Blockquote

NullReferenceException: Object reference not set to an instance of an object Boo.Lang.Runtime.RuntimeServices.GetDispatcher (System.Object target, System.String cacheKeyName, System.Type[] cacheKeyTypes, Boo.Lang.Runtime.DynamicDispatching.DispatcherFactory factory) Boo.Lang.Runtime.RuntimeServices.GetDispatcher (System.Object target, System.Object[] args, System.String cacheKeyName, Boo.Lang.Runtime.DynamicDispatching.DispatcherFactory factory) Boo.Lang.Runtime.RuntimeServices.GetProperty (System.Object target, System.String name) UnityScript.Lang.UnityRuntimeServices.GetProperty (System.Object target, System.String name) KeyForDoor.OnTriggerEnter () (at Assets/Custom Assets/Scripts/KeyForDoor.js:10)

0 Show 1

Mrobertson · Oct 16, 2012 at 11:56 PM 0

if(target.GameObject.FindWithTag == "Player") doesn't make sense to me do you mean if(target.gameObject.tag == "Player") ? or do you want to check if there is a game object in the scene with the player tag? if(GameObject.FindWithTag("Player")) also I believe your OnTriggerEnter function should be function OnTriggerEnter(var collider) {

}