Error:(15, 29) error: package com.amazon.device.iap does not exist I am running Android Studio 2.1.2 as explained in the developer.amazon.com FAQs I d/l SDK from  I open the folder:   https://developer.amazon.com/public/apis/earn/in-app-purchasing/docs-v2/getting-started-with-iap-v2.0  C:\Amazon-Android-SDKs\AmazonInAppPurchasing\examples\SampleIAPConsumablesApp  https://developer.amazon.com/public/apis/earn/in-app-purchasing/docs-v2/implementing-iap-2.0 How to get orange dialog or red, green, blue buttons as in Button Clicker example ? The examples compile when imported but don't do anything. Where are the interface files, or where is the example that is close to the webApp Button Clicker example? There is a big disconnect between the documentation and an actual example that should work like the Button Clicker. Have I overlooked something??