Facebook sdk for unity 显示 NullReferenceException: Facebook object is not yet loaded。 你调用了 FB.Init() 了吗？ 在谷歌内部测试中

Question

Working on a Unity game for Android using Facebook's Unity SDK, but after publishing game to google play internal testing, it throws NullReferenceException. It worked perfectly when I tested on local apk bulit on Unity.

Logcat

2022-08-21 21:20:15.811 26811-28518/? E/Unity: NullReferenceException: Facebook object is not yet loaded.  Did you call FB.Init()?
      at Facebook.Unity.FB.get_FacebookImpl () [0x00000] in <00000000000000000000000000000000>:0 
      at Facebook.Unity.FB.LogInWithReadPermissions (System.Collections.Generic.IEnumerable`1[T] permissions, Facebook.Unity.FacebookDelegate`1[T] callback) [0x00000] in <00000000000000000000000000000000>:0 
      at UnityEngine.Events.UnityEvent.Invoke () [0x00000] in <00000000000000000000000000000000>:0 
      at UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) [0x00000] in <00000000000000000000000000000000>:0 
      at UnityEngine.EventSystems.StandaloneInputModule.ProcessTouchPress (UnityEngine.EventSystems.PointerEventData pointerEvent, System.Boolean pressed, System.Boolean released) [0x00000] in <00000000000000000000000000000000>:0 
      at UnityEngine.EventSystems.StandaloneInputModule.ProcessTou\

FB Initialize

void Awake()
    {
        Instance = this;

        MoreGame.SetActive(false);

        if (!FB.IsInitialized)
        {
            // Initialize the Facebook SDK
            FB.Init(InitCallback, OnHideUnity);
        }
        else
        {
            // Already initialized, signal an app activation App Event
            FB.ActivateApp();
        }

        initGameScene();
    }

    private void InitCallback()
    {
        if (FB.IsInitialized)
        {
            // Signal an app activation App Event
            FB.ActivateApp();
            FB.Android.RetrieveLoginStatus(LoginStatusCallback);
            // Continue with Facebook SDK
            // ...
        }
        else
        {
            Debug.Log("Failed to Initialize the Facebook SDK");
        }
    }

    private void OnHideUnity(bool isGameShown)
    {
        if (!isGameShown)
        {
            // Pause the game - we will need to hide
            Time.timeScale = 0;
        }
        else
        {
            // Resume the game - we're getting focus again
            Time.timeScale = 1;
        }
    }

Answer 1

Make sure you are not in Debug mode in unity and this script is enabled on any game object. I was facing this issue when i was in debug mode. When i switched to release mode this issue was gone.