title: watchkit extension 2 iOS app crash at start in simulator
body: <p>I have configured the WatchKit App to run in my project (WatchOS2).
  When I try to run it into the simulator the WatchKit App start perfectly, but each times I'm trying to start the iOS app, this one crash.</p>
  
  <p>The simulator's log show me that : </p>
  
  <p>com.apple.CoreSimulator.SimDevice.5F243C10-E98D-4A20-8950-2742FE6CABD5.launchd_sim[13288] (UIKitApplication:com.MyCompany.MyProject[0x847][13496]): Service exited due to signal: Trace/BPT trap: 5</p>
  
  <p>All of my code in the application delegate is in comment. just enough to start</p>
  
  <p>If I build and use my main app target with the same simulator setting, that works nicely. it just when I build and run the watchkit extension target.</p>
  
  <p>I tried to clean everything (derived data, simulator setting and contents). </p>
  
  <p>I know, it is not the simulator, because with a new project, the issue is not here. it might be something set somewhere ?? </p>
  
  <p>but nothing works, any idea ?.</p>