Crash occur at the end of Admob rewarded video on Android. Mediation works fine, crash happens only for Admob videos. On iOS no crash either.
Here is the crash log:
Caused by: java.lang.AbstractMethodError: abstract method "void com.google.android.gms.ads.reward.RewardedVideoAdListener.onRewardedVideoCompleted()"
at com.google.android.gms.internal.zzafh.onRewardedVideoCompleted(Unknown Source)
at com.google.android.gms.internal.zzafd.onTransact(Unknown Source)
at android.os.Binder.transact(Binder.java:387)
at hl.b(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):20)
at com.google.android.gms.ads.internal.reward.client.l.f(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):27)
at com.google.android.gms.ads.internal.a.u(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):471)
at com.google.android.gms.ads.internal.reward.d.f_(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):87)
at com.google.android.gms.ads.internal.reward.mediation.h.h(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):37)
at com.google.android.gms.ads.internal.reward.client.n.f(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):96)
at com.google.android.gms.ads.internal.a.u(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):471)
at com.google.android.gms.ads.internal.ak.Z(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):277)
at com.google.android.gms.ads.internal.gmsg.am.a(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):28)
at com.google.android.gms.ads.internal.webview.j.b(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):356)
at com.google.android.gms.ads.internal.webview.ab.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at com.google.android.gms.ads.internal.util.f.dispatchMessage(:com.google.android.gms.dynamite_dynamitemodulesa@[email protected] (040308-189987672):9)
at android.os.Looper.loop(Looper.java:234)
at android.app.ActivityThread.main(ActivityThread.java:5526)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Play-services is automatically updated to the latest version 12.0.1 with play resolver.
Also using Firebase 4.5.0 and Audience Network 4.28.0.
I'm guessing there is a plugin conflict because of the OnRewardedVideoCompleted() abstract method change made in play services 12.0.0, I but can't seem to go back to 11.8.0. After a long research I couldn't force resolve to an earlier play-services version and I'm not sure event it is possible. Is there a way to get past this or should I wait for a 12.0.1 supported version of the plugin?
I have same problem.
have the same problem too!

Same for me here https://github.com/googleads/googleads-mobile-unity/issues/453#issuecomment-380442333
Will be pushing out a release shortly that will address this crash.
This issue should be resolved on the latest version of this plugin (v3.13.0).
I have checked new plugin(v3.13.0) It is well done. Thanks @rampara
It works! Great job, thanks @rampara 鈾ワ笌
Glad to hear the issue has been resolved.
Most helpful comment
This issue should be resolved on the latest version of this plugin (v3.13.0).