title: Xcode scheme pre-action script not running
body: <p>Hit build and nothing gets printed in build log. What gives?</p>
  
  <p>Xcode Version 8.2.1 (8C1002)</p>
  
  <p><a href="https://i.stack.imgur.com/Kt0D2.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Kt0D2.png" alt="enter image description here"></a></p>