OnTriggerEnter not working

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

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class Coin : MonoBehaviour {
7.  
8.     private void OnTriggerEnter(Collider other)
9.     {
10.         if (other.tag == "Player")
11.         {
12.             Debug.Log("hello");
13.             //ScoreManager.Instance.GetCoin();
14.             Destroy(this.gameObject,1f);
15.         }
16.     }
17. }

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.

 

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.

 

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

 

Glad you got it working