gameObject.Find() returns null.

Hello!

I am trying to create a smoke grenade but i cannot access the gameobject 'SmokeCap' 'SmokeCap' is a child object of SmokeGrenade, and it has a particle emitter that i want to turn on after 6 seconds but the variable GrenadeMuzzle that i created on line 6 returns null instead of returning an object.

Here is my JavaScript

 #pragma strict
 var GrenadeTime = 0f;
 private var oneSecond = 0.001f;
 var duration : int = 20;
 var despawnTime : int = 60;
 var GrenadeMuzzle = GameObject.Find("SmokeCap");
 
 function Start () {
     
 }
 
 function Update () {
     print(GrenadeMuzzle);
     GrenadeTime += oneSecond + Time.deltaTime;
     print("GrenadeTime: " + GrenadeTime);
     if (GrenadeTime >= 6) {
         particleEmitter.emit = false;
         GrenadeMuzzle.particleEmitter.emit = true;
     }
     if (GrenadeTime > duration + 6) {
         GrenadeMuzzle.particleEmitter.emit = false;
     }
     if (GrenadeTime > despawnTime) {
         Destroy(this.gameObject);
     }
 }