OnTriggerEnter not working

Unity Engine
1

Here’s my problem that i’ve been trying to solve for the past couple of days:

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

public class Coin : MonoBehaviour {

    private void OnTriggerEnter(Collider other)
    {
        if (other.tag == "Player")
        {
            Debug.Log("hello");
            //ScoreManager.Instance.GetCoin();
            Destroy(this.gameObject,1f);
        }
    }
}

Now, when the Player collides with the coin, it outputs hello. But, when i uncomment the commented line, it throws a NullReferenceException. Now, i do have a script that’s named ScoreManager. I don’t understand why this happens.

2

Show ScoreManager script.

Are you setting the Instance variable = to “this” in Awake or Start in ScoreManager?

NullReferenceExceptions are pretty easy to solve. It means something doesn’t have a value, thus it is null, but you are trying to access it. So Instance is null.

1 Like
3

All right! I Instanced it and now it works! Thank you very much.

4

Glad you got it working :slight_smile: