Forum Unity3D-France

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transform.position = playerGroupSpawn[0].transform.position;

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NullReferenceException: Object reference not set to an instance of an object
battleController.changescene () (at Assets/script/battleController.cs:48)
battleController.OnTriggerEnter (UnityEngine.Collider other) (at Assets/script/battleController.cs:35)

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   public string battleSceneToLoad;
    public GameObject[] playerGroupSpawn;
    bool ifcombat = false;

    void Start() {
    }


    void Update() {

        playerGroupSpawn[0] = GameObject.Find("point1");
        playerGroupSpawn[1] = GameObject.Find("point2");
        playerGroupSpawn[2] = GameObject.Find("point3");
        playerGroupSpawn[3] = GameObject.Find("point4");
    }

    void OnTriggerEnter(Collider other)
    {
        if (other.tag == "cityBattle")
        {
            changescene();
        }
    }

    void changescene()
    {
        SceneManager.LoadScene(battleSceneToLoad, LoadSceneMode.Additive);
        Scene nextScene = SceneManager.GetSceneAt(1);
        SceneManager.MoveGameObjectToScene(gameObject, nextScene);
        SceneManager.UnloadSceneAsync("terrain");
        transform.position = playerGroupSpawn[0].transform.position;
    }

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Unloading the last loaded scene Assets/terrain.unity(build index: 0), is not supported. Please use SceneManager.LoadScene()/EditorSceneManager.OpenScene() to switch to another scene.
UnityEngine.SceneManagement.SceneManager:UnloadSceneAsync(String)
battleController:changescene() (at Assets/script/battleController.cs:37)
battleController:OnTriggerEnter(Collider) (at Assets/script/battleController.cs:28)

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void changescene()
    {
        SceneManager.LoadScene(battleSceneToLoad, LoadSceneMode.Additive);
        Scene nextScene = SceneManager.GetSceneAt(1);
        SceneManager.MoveGameObjectToScene(gameObject, nextScene);
        SceneManager.UnloadSceneAsync("terrain");
        transform.position = playerGroupSpawn[0].transform.position;
    }