I am trying to work through the code examples from your book using Android Studio V2.3.2. I am getting some unresolved errors on some of the import statements such as FloatingActionButton and SnackBar. I have tried the code on 2 PCs with the same problem. I have set up several Android devices for testing such as the latest Android API 26, Android 7.1.1 (Nougat) and Android 6.0 (Marshmallow). Am I missing some reference library? Thanks for any help!
Best regards, Bruce