```
java.lang.IncompatibleClassChangeError: Superclass com.google.android.gms.dynamic.zzg of com.google.android.gms.internal.zzdx is declared final (declaration of 'com.google.android.gms.internal.zzdx' appears in /data/app/io.github.basixkor.scipnet-1/split_lib_dependencies_apk.apk:classes12.dex)
    at com.google.android.gms.internal.zzeh.zzeO(Unknown Source)
    at com.google.android.gms.internal.zzey.<clinit>(Unknown Source)
    at com.google.android.gms.ads.AdRequest.<clinit>(Unknown Source)
    at com.google.android.gms.ads.AdRequest$Builder.<init>(Unknown Source)

```

This is a stack trace thrown by calling a `AdRequest`. I tried clean, and rebuild but it still not working.

```
find<AdView>(R.id.adView).loadAd(AdRequest.Builder().addTestDevice(AdRequest.DEVICE_ID_EMULATOR).build())

```

This code is a kotlin code for load a ad.

```
<com.google.android.gms.ads.AdView
    android:id="@+id/adView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_alignParentBottom="true"
    ads:adSize="BANNER"
    ads:adUnitId="@string/banner_ad_unit_id" />

```

And this is a layout.
How do I solve this error?