Instantiating child as parent not working : Object Pooling

Questions & Answers
1

I am making an endless runner game, and I am trying to use Object Pooling. When I try to set the transform of the child to the transform of the parent, it gives me an error:

NullReferenceException: Object reference not set to an instance of an object(wrapper stelemref) object:stelemref (object,intptr,object) ObjectPool.Start () (at Assets/Scripts/LevelScripts/     ObjectPool.cs:19)

Here is the code. Any answers are good! Thank You!

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

public class ObjectPool : MonoBehaviour {

	private GameObject[][] objects = null;

	public GameObject[] objectsToInstantiate1;
	public GameObject[] objectsToInstantiate2;
	public GameObject[] objectsToInstantiate3;
	public GameObject[] objectsToInstantiate4;
	public GameObject[] objectsToInstantiate5;

	// Use this for initialization
	void Start () {
		objects = new GameObject[5][];
		for (int i = 0; i < objectsToInstantiate1.Length; i++) {
			objects [1]  _= Instantiate (objectsToInstantiate1*) as GameObject;*_

_ objects [1] .transform.parent = gameObject.transform;
objects [1] .SetActive (false);
* }
for (int j = 0; j < objectsToInstantiate2.Length; j++) {
objects [2] [j] = Instantiate (objectsToInstantiate2[j]) as GameObject;
objects [2] [j].transform.parent = gameObject.transform;
objects [2] [j].SetActive (false);
}
for (int k = 0; k < objectsToInstantiate3.Length; k++) {
objects [3] [k] = Instantiate (objectsToInstantiate3[k]) as GameObject;
objects [3] [k].transform.parent = gameObject.transform;
objects [3] [k].SetActive (false);
}
for (int l = 0; l < objectsToInstantiate4.Length; l++) {
objects [4] [l] = Instantiate (objectsToInstantiate4[l]) as GameObject;
objects [4] [l].transform.parent = gameObject.transform;
objects [4] [l].SetActive (false);
}
for (int m = 0; m < objectsToInstantiate5.Length; m++) {
objects [5] [m] = Instantiate (objectsToInstantiate5[m]) as GameObject;
objects [5] [m].transform.parent = gameObject.transform;
objects [5] [m].SetActive (false);
}
}*_

* // Update is called once per frame*
* void Update () {*

* }*
}

2

You need to set each GameObject as well. Right now the GameObject is a new GameObject of length 5, but each GameObject within that is still null.

for(int i=0;i<objects.Length;++){
     objects*=new GameObject[5];*

}
or if each “objectstoinstantiate” is a different length:
objects[0]=new GameObject[objectsToInstantiate1.Length];
objects[1]=new GameObject[objectsToInstantiate2.Length];
…