Using Material Button gives ClassNotFound runtime error

Question

I am in the process of replacing the buttons in my app with Material Buttons using in the XML file and

Answer 1

As it suggest HERE you have to add a dependency in your build.gradle:

implementation 'com.google.android.material:material:1.0.0-beta01'

Or if you already use google support design library you must change your app theme to inherit from a Material Components theme