GameManager class error

Hi, im working with a game manager who gets a player transform and a player prefab, i can assign these variables in the inspector directly, i worked with it in one scene and it work perfectly, but i tried to use in another scene and i have an Unassigned Reference Exception it says my variable PlayerSpawnPoint has not been assigned and probably need to assign in the inspector, but i don´t know why, because in the inspector te transform is assigned.

Here is the code of my class:

Code (CSharp):

1.  
2.     public Transform playerSpawnPoint;
3.     public GameObject player;
4.     public static GameManager instance { get; private set; }
5.  
6.     private void Awake()
7.     {
8.         if (instance == null)
9.             instance = this;
10.     }
11.  
12.     // Start is called before the first frame update
13.     void Start()
14.     {
15.         instance = this;
16.         player = GameObject.FindGameObjectWithTag("Player");
17.         player.transform.position  = playerSpawnPoint.position;
18.     }

 

You should check if an instance of the GameManager is already loaded, just add

Code (CSharp):

1.  
2. else
3.     Destroy(gameObject);
4.  

to the Awake method.

also you don't need to do it again in the Start method.

Maybe that's where you issue comes from ?

 

Your "PlayerSpawnPoint" is a reference to a scene object, so when you change scenes, that object is gone, and the variable becomes null. You'll need to get a reference to the spawn point in the next scene.

 

Actually I already solved it, the problem was that I had assigned my game manager to another object and Unity didn't know which game manager prefers, but thanks for the reply and the time to read