Bug: error log of "android.os.RemoteException: Method is not found at com.google.android.gms.ads.mediation.Adapter.loadNativeAdMapper"

[AndroidDeveloperLB]

This is what I get:

android.os.RemoteException: Method is not found (Ask Gemini)
                                                                      	at com.google.android.gms.ads.mediation.Adapter.loadNativeAdMapper(SourceFile:5)
                                                                      	at com.google.android.gms.internal.ads.zzbqf.zzz(SourceFile:289)
                                                                      	at com.google.android.gms.internal.ads.zzbpg.zzdD(SourceFile:630)
                                                                      	at com.google.android.gms.internal.ads.zzayb.onTransact(SourceFile:21)
                                                                      	at android.os.Binder.transact(Binder.java:1243)
                                                                      	at m.ant.bh(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:8)
                                                                      	at com.google.android.gms.ads.internal.mediation.client.f.r(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:28)
                                                                      	at com.google.android.gms.ads.nonagon.render.bp.b(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:45)
                                                                      	at com.google.android.gms.ads.nonagon.render.dx.a(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:11)
                                                                      	at com.google.android.gms.ads.nonagon.util.concurrent.t.call(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:3)
                                                                      	at m.ckq.a(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:3)
                                                                      	at m.cjx.run(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:19)
                                                                      	at m.ckr.run(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:5)
                                                                      	at android.os.Handler.handleCallback(Handler.java:991)
                                                                      	at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                      	at m.bbw.a(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:1)
                                                                      	at com.google.android.gms.ads.internal.util.f.a(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:1)
                                                                      	at m.bbw.dispatchMessage(:com.google.android.gms.policy_ads_fdr_dynamite@[email protected]:1)
                                                                      	at android.os.Looper.loopOnce(Looper.java:232)
                                                                      	at android.os.Looper.loop(Looper.java:317)
                                                                      	at android.app.ActivityThread.main(ActivityThread.java:8787)
                                                                      	at java.lang.reflect.Method.invoke(Native Method)
                                                                      	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:591)
                                                                      	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:871)

Dependency:

implementation("com.google.android.gms:play-services-ads:23.6.0")

I also use various ad-sources for mediation.

Reported here too:
https://groups.google.com/g/google-admob-ads-sdk/c/VGFW8zA3zdY