Error while binding amazon ads sdk in xamarin

I'm trying to binding the amazon ads sdk in my project. I'm using the latest version (5.8.2).

I follow all the steps describe here :

https://developer.xamarin.com/guides/android/advanced_topics/binding-a-java-library/binding-a-jar/

After cleaning, and building, i had 5 errors:

Error CS0234 The type or namespace name 'MobileAdsLoggerFactory' does not exist in the namespace 'Com.Amazon.Device.Ads'

Error CS0234 The type or namespace name 'IAdControlCallback' does not exist in the namespace 'Com.Amazon.Device.Ads'

Error CS0234 The type or namespace name 'IAdSDKBridgeFactory' does not exist in the namespace 'Com.Amazon.Device.Ads'

I tried to fix that with adding all the other sdk parts of amazon API, but it brings me more errors like these.

I think they have forget to add these namespace into the SDK, am i right?

Thanks a lot!