title: Android Package Name is not a valid Package name
body: <p>I am trying to add a new activity to my APP. Im trying to do this on the following way:
  Res -> Layout -> Right click on layout -> New -> Activity -> Blank activity</p>
  
  <p>When I do this I keep getting the error message:
  Package Name is not a valid Package name<a href="https://i.stack.imgur.com/yrYbg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yrYbg.png" alt="enter image description here"></a></p>
  
  <p>How can I make a new activity?</p>