NullReferenceException: Object reference not set to an instance of an object? (102048)

Questions & Answers
1

Object A instantiates Object B on KeyPress. This script is attached to Object B.

	private GameObject crowd;
	void Start()
	{
		crowd = GameObject.Find ("Crowd(Clone)");
	}

	void Update()
		{
			if (!GameObject.FindGameObjectWithTag("Player").GetComponent<PlayerDamage>().invulnerable)
			{
				if (gameObject.renderer.bounds.Intersects(crowd.renderer.bounds)) {
					// Do some stuff
				}
			}
		}
  • NullReferenceException: Object reference not set to an instance of an object
    DestroyRadius.Update ()
2

right, as with all NRE you’re trying to access something that doesn’t exist

So either,

  1. there’s not an object tagged “Player”
  2. There is, but it doesn’t have a PlayerDamage script attached*
  3. It does, but that script doesn’t have a .invulnerable().
  4. Or finally, the current gameObject doesn’t have a renderer

(*alternatively, there might be more than one object tagged player and the one that its finding does’t have the PlayerDamageScript)