CameraController (object reference not set to an instance of an object)

Questions & Answers
1

I followed the roll-a-ball tutorial and camera worked and followed the player, but when I made the game multiplayer and it was spawning players as Player(Clone), I tried to remake the script as following (because it’s not working if I put a prefab onto the main camera):

using UnityEngine;
using System.Collections;

public class CameraController : MonoBehaviour {

private GameObject rb;

private Vector3 offset;

void Start ()
{
	GameObject player = GameObject.FindWithTag ("Player");
	player = rb;
	rb.GetComponent<GameObject> ();
	offset = transform.position - rb.transform.position;
}

void LateUpdate ()
{
	transform.position = rb.transform.position + offset;
}

}

And it was giving me this error (object reference not set to an instance of an object) … I don’t know what I did wrong… I’m appreciating any response …

2

Why are you making the RigidBody equal to the player?
Try something more like this:

 private Transform Player;
 private Vector3 offset;
 void Start ()
 {
     Player = GameObject.FindWithTag ("Player").transform;
     Player = rb;
     rb.GetComponent<GameObject> ();
     offset = transform.position - rb.transform.position;
 }
 void LateUpdate ()
 {
     transform.position = rb.transform.position + offset;
 }

Also here is a real simple camera follow player script:

	public Transform target;

	void Update()
	{
		if (target)
		{
			transform.position = Vector3.Lerp (transform.position, target.position, 0.1f) + new Vector3 (0, 0, -10);
		}
	}
}