OnCollisionEnter() problem destroying object

Questions & Answers
1

public Transform redParticle;
void OnCollisionEnter(Collision collide)
{

		if(collide.gameObject.tag == "bigRing")
		{
			Debug.Log ("You hit: " + collide.gameObject.tag);
			var redEffect = Instantiate(redParticle, transform.position, transform.rotation) as GameObject;
			Destroy (redEffect.gameObject, 3);
		}
    }

This is the collision code I have for my object, when a collision takes place, I would like the particle effect I have to play and then destroy it 3 seconds later, but at the moment, I receive the error

NullReferenceException: Object reference not set to an instance of an object

The particle effect is played, it’s just not being destroyed.

Anyone know what I’m doing wrong? Cheers

2

Why not just “redEffect” :

Destroy (redEffect, 3);

If you only want to destroy the particle system ? The redEffect variable is the partycle system.