Facebook Audience Network null object reference when creating banner

Questions & Answers
1

Hello,

I am trying to implement Facebook Audience Network to my unity project. When I try sample scenes that is provided by sdk, I get an null object reference error.

NullReferenceException: Object reference not set to an instance of an object
AudienceNetwork.AdViewBridgeAndroid.Create (System.String placementId, AudienceNetwork.AdView adView, AudienceNetwork.AdSize size) (at Assets/AudienceNetwork/Library/AdView.cs:470)
AudienceNetwork.AdView..ctor (System.String placementId, AudienceNetwork.AdSize size) (at Assets/AudienceNetwork/Library/AdView.cs:117)
AdViewScene.LoadBanner () (at Assets/AudienceNetwork/Scenes/Banner/AdViewScene.cs:39)

I looked at the line of error and as I understand, object of AndroidJaveObject class can’t be instantiated.

 public override int Create(string placementId,
                                   AdView adView,
                                   AdSize size)
        {
            AdUtility.prepare();
            AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
            AndroidJavaObject currentActivity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
            if(currentActivity==null){
                //CURRENT ACTIVITY IS THE VARIABLE THAT CAUSES ERROR WHILE IT IS NULL
                Debug.LogError("No current activity");                
   
            }
            AndroidJavaObject context = currentActivity.Call<AndroidJavaObject>("getApplicationContext");

            AndroidJavaObject bridgedAdView = new AndroidJavaObject("com.facebook.ads.AdView",
                    context,
                    placementId,
                    javaAdSizeFromAdSize(size));

            AdViewBridgeListenerProxy proxy = new AdViewBridgeListenerProxy(adView, bridgedAdView);
            bridgedAdView.Call("setAdListener", proxy);

            AdViewContainer adViewContainer = new AdViewContainer(adView);
            adViewContainer.bridgedAdView = bridgedAdView;
            adViewContainer.listenerProxy = proxy;

            int key = AdViewBridgeAndroid.lastKey;
            AdViewBridgeAndroid.adViews.Add(key, adViewContainer);
            AdViewBridgeAndroid.lastKey++;
            return key;
        }

Maybe I am missing initialization of a facebook service, but I followed documentation completely.

Do you have any idea about the cause of this error?

2

Did you manage to solve this issue ?,Did you manage to solve that issue ??

3

Similar question. I got this when I click Load Interstitial

NullReferenceException: Object reference not set to an instance of an object
AudienceNetwork.AudienceNetworkAds.IsInitialized () (at Assets/AudienceNetwork/Library/AudienceNetworkAds.cs:34)
AudienceNetwork.AudienceNetworkAds.Initialize () (at Assets/AudienceNetwork/Library/AudienceNetworkAds.cs:15)
InterstitialAdScene.Awake () (at Assets/AudienceNetwork/Scenes/Interstitial/InterstitialAdScene.cs:23)

4

Same Problem And not finding solution :frowning: