title: Cannot use "FrameLayout", error: "Element FrameLayout must be declared" [Android Studio]
body: <p>I am doing a small bit of Android development on a React Native project and I cannot work out how to "import" FrameLayout. I'm sure it is very simple but after an hour of Googling I am stumped. </p>
  
  <p>Please see the error below: </p>
  
  <p><a href="https://i.stack.imgur.com/XPM0N.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XPM0N.png" alt=""></a></p>
  
  <p>Thanks,
  Al</p>