I can't spawn different objects in different positions, what could be the problem?

Question

C++ / C#

Tried different ways, but this one worked. At some point, it still breaks and throws an error:

IndexOutOfRangeException: Index was outside the bounds of the array.

Here is the code where the error is:

public class spawnEnemy : MonoBehaviour
{
    public Transform[] spawnPlace;

    public GameObject[] spriteEnemy; 

    void Start()
    {
        
    }

    void FixedUpdate()
    {
        WaitSpawn();
    }

    public void WaitSpawn()
    {

        Transform position = spawnPlace[Random.Range(0, spawnPlace.Length)];
        GameObject enemySquare = spriteEnemy[Random.Range(0, spriteEnemy.Length)];
        GameObject enemy = Instantiate(enemySquare, position.position, Quaternion.identity);
    }

}

Answer 1

I thought that the problem was in random, I checked it through Debug.log, it turned out that the array was not always filled with objects. Because of this, it gave an error. I checked for the presence of objects, everything works.

Answer 2

Somewhere you forgot to add objects to the array, here it randomly gives you a zero element, but it is not there.

Answer 3

Try checking != null to do

Answer 4

Transform position = spawnPlace[Random.Range(0, spawnPlace.Length)];
It means that you choose a random position from pre-set ones, where do you set them?
By the way, Length gives the number of objects in the array. not the number of the last object (differ by 1)