Particle System not playing

Questions & Answers
1

Debug Console says:

NullReferenceException: Object reference not set to an instance of an object
DamCtrl.Update () (at Assets/CarScene/Scripts/DamageScripts/DamCtrl.js:62)

DamCtrl.js (Clipped):

var health : float;
var smoke : ParticleSystem;

function Start () {
	smoke = gameObject.GetComponent(ParticleSystem);
}

function Update () {	

	if(health <= 75 && health >= 55){
		 smoke.Play();
	}
}

Line 62 is “smoke.Play();”

What’s missing??

2

Looks like smoke is not valid.

Make sure that the Particle system is really found in your start function before you try to play the effect:

 if(smoke != null)
 {
  smoke.Play();
 }

Good luck!