Object reference is NULL when IT IS set to an instance of an object?

Questions & Answers
1

Currently I am trying to get my current object that contains a NavMeshAgent to move towards 3 different waypoints. When one waypoint is reached, the object will go to the next waypoint. I am receiving an error on the line that contains > agent.SetDestination (wayPoint [0].position);. Before this line I have already set my agent variable to the component attached to my current object so I am a little confused why this null reference exception is occurring. Thanks in advance.

using UnityEngine;
using System.Collections;

public class NPCmovement : MonoBehaviour {
	public GameObject player;
	public Transform[] wayPoint = new Transform[3];
	Vector3 dist;
	NavMeshAgent agent;
	// Use this for initialization
	void Start () {
		agent = GetComponent<NavMeshAgent> ();
	}
	
	void Update () 
	{
		agent.SetDestination (wayPoint [0].position);
		if (transform.position == wayPoint [0].position) {
			agent.SetDestination (wayPoint [1].position);
			//if(agent 
			if (transform.position == wayPoint [1].position) {
			
				agent.SetDestination (wayPoint [2].position);

			}
		}

}

2

you can declare the Transform Arrays like this: (from the inspector you can set the size and the values)

public Transform[] waypoint;

to be always sure your waypoints are not null and easily editable.
Cheers.