Error after updating google ads to 121.0.0.0 (same thing from version 120.6.0 and 120.6.1)

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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I'm getting this error after updating google ads to the last three versions available in nuget

{Java.Lang.IncompatibleClassChangeError: The method 'java.lang.Class java.lang.Object.getClass()'
 was expected to be of type interface but instead was found to be of type virtual (declaration of 
 'com.google.android.gms.dynamic.ObjectWrapper' appears in /data/app/com.nkkinsoft.jobmag-1/base.apk)
  at Java.Interop.JniEnvironment+InstanceMethods.CallVoidMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x00068] in /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:11884 
  at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x00024] in /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/Java.Interop/JniPeerMembers.JniInstanceMethods_Invoke.cs:29 
  at Android.Gms.Ads.BaseAdView.LoadAd (Android.Gms.Ads.AdRequest adRequest) [0x00027] in C:\a\_work\1\s\generated\com.google.android.gms.play-services-ads-lite\obj\Release\monoandroid12.0\generated\src\Android.Gms.Ads.BaseAdView.cs:498 
  at Wordpress.Adapters.RecycleAdapter.FillHorizontalCrads (System.IDisposable holder, System.Int32 position) [0x000e8] in D:\Nkkin\xamarin\Bloggers\Job Mag\Wordpress\Adapters\RecycleAdapter.cs:339 
  --- End of managed Java.Lang.IncompatibleClassChangeError stack trace ---
java.lang.IncompatibleClassChangeError: The method 'java.lang.Class java.lang.Object.getClass()' was expected to be of type interface but instead was found to be of type virtual (declaration of 'com.google.android.gms.dynamic.ObjectWrapper' appears in /data/app/com.nkkinsoft.jobmag-1/base.apk)
	at com.google.android.gms.dynamic.ObjectWrapper.unwrap(com.google.android.gms:play-services-basement@@18.0.2:4)
	at com.google.android.gms.ads.internal.client.zzdu.zzm(com.google.android.gms:play-services-ads-lite@@21.0.0:23)
	at com.google.android.gms.ads.BaseAdView.loadAd(com.google.android.gms:play-services-ads-lite@@21.0.0:5)
	at mono.java.lang.RunnableImplementor.n_run(Native Method)
	at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30)
	at android.os.Handler.handleCallback(Handler.java:751)
	at android.os.Handler.dispatchMessage(Handler.java:95)
	at android.os.Looper.loop(Looper.java:154)
	at android.app.ActivityThread.main(ActivityThread.java:6176)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:893)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:783)
}

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Original Comments

Feedback Bot on 6/30/2022, 07:38 PM:

(private comment, text removed)

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Original Solutions

(no solutions)

[dmariogatto]

Still an issue on the latest version 121.0.0.1. Possibly related to #637.

[jvreeker]

I had also these problems, so I rolled back.

[jonathanantoine]

Same problem for me, it happens only on Samsung devices (Galaxy S9 for instance) as far as I know.

[AntRemo]

Hi @dmariogatto, @jvreeker @jonathanantoine

Where is this error occurring for you? (ex: emulator, test devices, production)

I just updated my project (121.2.0 Ads.Lite) and was able to build + run on emulator. Curious if my configuration resolves this issue.

Many thanks! 🙏

[mhdwaelanjo]

I fixed the problem.. we can use my libraries :

 <PackageReference Include="Anjo.Android.GoogleServices.Ads" Version="22.0.0" />
 <PackageReference Include="Anjo.Android.GoogleServices.AdsBase" Version="22.0.0" />
 <PackageReference Include="Anjo.Android.GoogleServices.AdsLite" Version="22.0.0" />

Supports fixing the problem of Loading ads using :

• Let's rename for Interstitial ads InterstitialAdLoadCallback to AnjoInterstitialLoadCallback.
• Let's rename for Rewarded ads RewardedAdLoadCallback to AnjoRewardedLoadCallback.
• Let's rename for App Open Ads AppOpenAd.AppOpenAdLoadCallback to AnjoAppOpenLoadCallback.
• Let's rename for Rewarded interstitial ads RewardedInterstitialAdLoadCallback to AnjoRewardedInterstitialLoadCallback.