Admob-lite vs full version: MobileAdsSettingManagerCreatorImpl

Clash Royale CLAN TAG#URR8PPPAdmob-lite vs full version: MobileAdsSettingManagerCreatorImpl
My app uses play-services-ads-15.0.1 dependency, which in turn depends on play-services-ads-lite
play-services-ads-15.0.1
play-services-ads-lite
But when the app runs on an emulator, there is an error message:
E/Ads: This app is using a lightweight version of the Google Mobile
Ads SDK that requires the latest Google Play services to be installed,
but Google Play services is either missing or out of date.
and no Admob test-ads load.
This warning shows in logcat:
W/Ads:
Could not get remote MobileAdsSettingManager.
com.google.android.gms.dynamic.RemoteCreator$RemoteCreatorException: Could not load creator class.
at com.google.android.gms.dynamic.RemoteCreator.getRemoteCreatorInstance(Unknown Source:51)
at com.google.android.gms.internal.ads.zzme.zzg(Unknown Source:5)
at com.google.android.gms.internal.ads.zzjw.zzib(Unknown Source:8)
at com.google.android.gms.internal.ads.zzjr$zza.zzid(Unknown Source:0)
at com.google.android.gms.internal.ads.zzjr.zza(Unknown Source:75)
at com.google.android.gms.internal.ads.zzmb.zza(Unknown Source:32)
at com.google.android.gms.ads.MobileAds.initialize(Unknown Source:7)
at com.google.android.gms.ads.MobileAds.initialize(Unknown Source:1)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.ads.MobileAdsSettingManagerCreatorImpl" on path: DexPathList[[zip file "/system/framework/com.android.location.provider.jar", zip file "/system/priv-app/PrebuiltGmsCorePano/PrebuiltGmsCorePano.apk"],nativeLibraryDirectories=[/system/priv-app/PrebuiltGmsCorePano/lib/x86, /system/fake-libs, /system/priv-app/PrebuiltGmsCorePano/PrebuiltGmsCorePano.apk!/lib/x86, /system/lib, /vendor/lib, /system/lib, /vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:93)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.google.android.gms.dynamic.RemoteCreator.getRemoteCreatorInstance(Unknown Source:27)
... 27 more
It looks like only the "ads-lite" jar is found, but not the "full version".
How can I fix this?
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