title: 'Build input file cannot be found' Swift 4.2, Xcode 10.0
body: <p>I am getting the following error when building in Xcode 10.0 with swift 4.2:</p>
  
  <p><a href="https://i.stack.imgur.com/48lR7.png" rel="noreferrer"><img src="https://i.stack.imgur.com/48lR7.png" alt="This is the error"></a></p>