title: Alamofire and update for Swift 3
body: <p>I just updated to Xcode 8 and to Alamofire 4.0, and I got some odd errors. The first one is a bunch of errors looking like this:</p>
  
  <blockquote>
    <p>... warning: Missing file: ... is missing from working copy</p>
  </blockquote>
  
  <p>This goes on for Download.swift, Manager.swift, Stream.swift, Upload.swift and Error.swift. How to solve that one?</p>
  
  <p>Furthermore I got this one, only for alamofire, not for any other of my libraries:</p>
  
  <blockquote>
    <p>“Use Legacy Swift Language Version” (SWIFT_VERSION) is required to be configured correctly for targets which use Swift. Use the [Edit > Convert > To Current Swift Syntax…] menu to choose a Swift version or use the Build Settings editor to configure the build setting directly.</p>
  </blockquote>
  
  <p>And when I try to convert it, I get</p>
  
  <blockquote>
    <p>Could not find test host for FieldSenseAppTests: TEST_HOST evaluates to ..."</p>
  </blockquote>