Cant implement Admob rewarded video ads in my app. Cannot create an instance of an abstract class. | RewardedAd()

Question

enter image description here As you can see I followed google's official documentation, but still it throws error every time. It says cannot create an instance of an abstract class.

Answer 1

On page: https://developers.google.com/admob/android/rewarded

you can see the warning:

Warning: This guide covers the rewarded API as it existed prior to 19.7.0. Please read the migration guide for more details on the changes introduced in version 19.7.0 and finalized in 20.0.0.

And you can update the new guide at https://developers.google.com/android/reference/com/google/android/gms/ads/rewarded/RewardedAd