App Crash on Android version 4.3

[sonivaibhav27]

FATAL EXCEPTION: main
java.lang.NoClassDefFoundError: com.google.android.gms.internal.ads.zzzt
at com.google.android.gms.ads.MobileAdsInitProvider.(com.google.android.gms:play-services-ads-lite@@19.7.0:2)
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1130)
at android.app.ActivityThread.installProvider(ActivityThread.java:5107)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4725)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4665)
at android.app.ActivityThread.access$1400(ActivityThread.java:159)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1376)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
at dalvik.system.NativeStart.main(Native Method)

I have done all the installations step in the docs , Please help

[andersonaddo]

This should be an issue, not a discussion.
Open an issue and follow the template :)