Problem: Null Reference Exception at Shooter Script

[ameerashour2018]

I’m having some problems right now. I was writing the script for the shooter, and despite that I got everything right and I didn’t make an error in the script itself, I keep getting this error message in the console.

The worst part is that because of the error the cactus refuses to change it’s animation. Can somebody help me?

[Bryant_Schaper]

What is line 47 of the shooter.cs doing. Looks like you are calling a reference to an object that is not. Maybe it wasn’t assigned in the inspector

[ameerashour2018]

Every spawner’s assigned as an AttackerSpawner in the Inspector. I’m now not so sure what I missed. Is there something in my code that needs to be fixed? Or something in the inspector that needs to be done?

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

public class Shooter : MonoBehaviour
{
    [SerializeField] GameObject projectile;
    [SerializeField] GameObject shootPos;
    AttackerSpawner myLaneSpawner;
    Animator animator;

    public void Start()
    {
        SetLaneSpawner();
        animator = GetComponent<Animator>();
    }

    public void Update()
    {
        if (IsAttackerInLane())
        {
            animator.SetBool("IsAttacking", true);

        } else
        {
            animator.SetBool("IsAttacking", false);
        }
    }

    private void SetLaneSpawner()
    {
        AttackerSpawner[] spawners = FindObjectsOfType<AttackerSpawner>();
        foreach(AttackerSpawner spawner in spawners)
        {
            bool IsCloseEnough = (Mathf.Abs(spawner.transform.position.y - transform.position.y) <= Mathf.Epsilon);

            if (IsCloseEnough) {

                myLaneSpawner = spawner;

             }
        }
    }

    private bool IsAttackerInLane()
    {
        if (myLaneSpawner.transform.childCount < 0)
        {
            return false;
        }
        else
        {
            return true;
        }
    }

    public void Fire()
    {
        Instantiate(projectile, shootPos.transform.position, Quaternion.identity);
    }
}

[Bryant_Schaper]

I suspect that Unity is not finding the animator on the cactus. Check that and maybe Devi’s the update method

[ameerashour2018]

The animator is already on the cactus and I’ve revised the code and I didn’t find anything in the Update method, and error is still on line 47. Did I miss something? Is there something I have to do in Unity 2019.2 I need to fix?

[Nina]

Does the y-position of your defender match the y-position one spawner? Check by logging the position values into your console.

[ameerashour2018]

I fixed it, and now it works! Thank you so much!!!