Null pointer exception when use Advertisement.Initialize unity

Unity Services
1

Iam using the latest unity version is : 2020.1.0 and Unity Monetization 3.4.6 but when i try to use ads in the game ( android platform, both jdk and sdk are use from unity recomend) i get this kind of error. I even try to use the package manager 3.4.7 but it is not work nether .

 private void Start()
    {
     
        Advertisement.Initialize(gameId);

    }

NullReferenceException: Object reference not set to an instance of an object
System.Net.AutoWebProxyScriptEngine.InitializeRegistryGlobalProxy () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.AutoWebProxyScriptEngine.GetWebProxyData () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.WebProxy.UnsafeUpdateFromRegistry () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.WebProxy…ctor (System.Boolean enableAutoproxy) (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.WebProxy.CreateDefaultProxy () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.Configuration.DefaultProxySectionInternal.GetSystemWebProxy () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.Configuration.DefaultProxySectionInternal.GetDefaultProxy_UsingOldMonoCode () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.Configuration.DefaultProxySectionInternal.GetSection () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.WebRequest.get_InternalDefaultWebProxy () (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.HttpWebRequest…ctor (System.Uri uri) (at <525dc68fbe6640f483d9939a51075a29>:0)
(wrapper remoting-invoke-with-check) System.Net.HttpWebRequest…ctor(System.Uri)
System.Net.HttpRequestCreator.Create (System.Uri uri) (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.WebRequest.Create (System.Uri requestUri, System.Boolean useUriBase) (at <525dc68fbe6640f483d9939a51075a29>:0)
System.Net.WebRequest.Create (System.String requestUriString) (at <525dc68fbe6640f483d9939a51075a29>:0)
UnityEngine.Advertisements.Platform.Editor.EditorPlatform.Initialize (System.String gameId, System.Boolean testMode, System.Boolean enablePerPlacementLoad) (at Library/PackageCache/com.unity.ads@3.4.5/Runtime/Advertisement/Platform/Editor/EditorPlatform.cs:85)
UnityEngine.Advertisements.Platform.Platform.Initialize (System.String gameId, System.Boolean testMode, System.Boolean enablePerPlacementLoad) (at Library/PackageCache/com.unity.ads@3.4.5/Runtime/Advertisement/Platform/Platform.cs:64)
UnityEngine.Advertisements.Advertisement.Initialize (System.String gameId) (at Library/PackageCache/com.unity.ads@3.4.5/Runtime/Advertisement/Advertisement.cs:57)
AdManager.Start () (at Assets/Scripts/Shop/AdManager.cs:24)

2

Could you shed a little more light on your environment and whats going on? This error looks to be occurring when running in play mode in the editor. Can you verify for me you have internet access and your not running anything locally that would be blocking our configuration request, such as Charles Proxy? Even if you were blocking the request an exception is not right and we would like to address this issue for anyone else that might be seeing it.

3

Why not invoke the Initialize with the 3 parameters

Advertisement.Initialize(_gameId, _testMode, this);

Your code ends up in this method

public static void Initialize (string gameId, bool testMode, IUnityAdsInitializationListener initializationListener)
    {
        if (initializationListener == null) {
            Debug.LogError ((object)"initializationListener is null, you will not receive any callbacks");
        }
        if (!testMode && UnityAdsSettings.get_testMode ()) {
            Debug.Log ((object)"Unity Ads is initializing in test mode since test mode is enabled in Service Window.");
        }
        s_Platform.Initialize (gameId, UnityAdsSettings.get_testMode () || testMode, new UnityAdsInitializationListenerMainDispatch (initializationListener, s_Platform.UnityLifecycleManager));
    }

Based on your log, you are not in the testMode nor do you have the test mode set in the UnityEditor. If very likely executes

s_Platform.Initialize (gameId, UnityAdsSettings.get_testMode () || testMode, new UnityAdsInitializationListenerMainDispatch (initializationListener, s_Platform.UnityLifecycleManager));

The [quote]
UnityAdsInitializationListenerMainDispatch
[/quote] received the initializationListener as null. Maybe that is where it breaks and it throws NullReferenceException.