title: WatchKit App won't compile: "error: WatchKit Extension doesn't contain any WatchKit apps"
body: <p>There are several posts on this issue but none of the proposed solutions work in my case.  I am trying to integrate the WatchKit into a simple, sample app (I've tried a couple now) by following the instructions provided by Apple.  When I compile I get the following error message:</p>
  
  <blockquote>
    <p>"error: WatchKit Extension doesn't contain any WatchKit apps. Verify
    that the value of WKWatchKitApp in your WatchKit App's Info.plist is
    set to YES."</p>
  </blockquote>
  
  <p>I have successfully compiled and run the Apple Watch "Catalog" example so I know things are working from an iPhone to Watch perspective.  It seems like something is not right when I try to integrate with an existing app.
  I have seen the posts here on this topic (e.g. <a href="https://stackoverflow.com/questions/29426315/watchkit-app-wont-run-on-simulator">WatchKit app wont run on simulator</a>) but none of the fixes work in my case; the bundle IDs all appear to be correct. Note I am trying to compile and run on an iPhone 6 not on the simulator.
  Any suggestions?</p>