the object with type 'GameObject' has been destroyed but you are still trying to access it

Questions & Answers
1

Hi, I’m working on the “Space Shooter” tutorial, and after adding bolts the ship is able to shoot them for only for few seconds then it gets disabled…
Player movement script::
using UnityEngine;
using System.Collections;

[System.Serializable]
public class Boundary
{
	public float xMin, xMax, zMin, zMax;
}


public class PlayerController : MonoBehaviour 
{

	public float speed;
	public float tilt;
	public Boundary boundary;

	public GameObject shot;
	public GameObject shotSpawn; 
	public float fireRate;

	private float nextFire; 

	void Update () 
	{
		if (Input.GetButton("Fire1") && Time.time > nextFire) 
		{
			shot = Instantiate(shot) as GameObject;
			nextFire = Time.time + fireRate;
			//GameObject clone = 
			shot.transform.position = shotSpawn.transform.position;

		}
	}
	void FixedUpdate ()
	{

		float moveHorizontal = Input.GetAxis ("Horizontal");
		float moveVertical = Input.GetAxis ("Vertical");

		Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);
		GetComponent<Rigidbody>().velocity = movement * speed;

		GetComponent<Rigidbody>().position = new Vector3
			(
				Mathf.Clamp (GetComponent<Rigidbody>().position.x, boundary.xMin, boundary.xMax), 0.0f, Mathf.Clamp (GetComponent<Rigidbody>().position.z, boundary.zMin, boundary.zMax)
			);
		GetComponent<Rigidbody>().rotation = Quaternion.Euler (0.0f, 0.0f, GetComponent<Rigidbody>().velocity.x * -tilt);
	}

}

Mover script::

using UnityEngine;
using System.Collections;

public class Mover : MonoBehaviour {

	public float speed;
	private Rigidbody rb;

	void Start()
	{
		rb = GetComponent<Rigidbody> ();
		rb.velocity = transform.forward * speed;
	}

}

Boundary script::

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class DestroyByBoundary : MonoBehaviour 
{
	void OnTriggerExit(Collider other) {
		Destroy (other.gameObject, 0.1f);
	}
}
2

Try it like this, also instead of using a GameObject directly as your bullet turn your bullet into a prefab to speed up your game.

GameObject shot = (GameObject)Instantiate(shot, transform.position + new Vector3(0.0f, 0.0f, 5.0f), transform.rotation);