Question NullReferenceException: Object reference not set to an instance of an object CoinManager.Update () (

What is wrong with this Code? How can I use TMP_Text i do not understand this?

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5.  
6. public class CoinManager : MonoBehaviour
7. {
8.     public int geld;
9.     public Text money;
10.     // Start is called before the first frame update
11.     void Start()
12.     {
13.  
14.     }
15.     // Update is called once per frame
16.     void Update()
17.     {
18.         money.text = geld.ToString();
19.     }
20.     public void AddMoney()
21.     {
22.         geld++;
23.     }
24. }
25.  

 

As Melv already posted above:

The answer is always the same... ALWAYS!

How to fix a NullReferenceException error

https://forum.unity.com/threads/how-to-fix-a-nullreferenceexception-error.1230297/

Three steps to success:
- Identify what is null <-- any other action taken before this step is WASTED TIME
- Identify why it is null
- Fix that