anchor.diff:      final IOSApp iosApp = app;
       final Directory bundle = fs.directory(iosApp.deviceBundlePath);
       if (!bundle.existsSync()) {
  -      printError("Could not find application bundle at ${bundle.path}; have you run 'flutter build ios'?");
  +      printError('Could not find application bundle at ${bundle.path}; have you run "flutter build ios"?');
         return false;
       }
   
  
positive.code:     final ForwardedPort forwardedPort = new ForwardedPort.withContext(hostPort,
          devicePort, process);
  
      printTrace("Forwarded port $forwardedPort");
  
      _forwardedPorts.add(forwardedPort);
  
  
negative.code:     }
  
      // Step 3: Attempt to install the application on the device.
      final List<String> launchArguments = <String>['--enable-dart-profiling'];
  
      if (debuggingOptions.startPaused)
        launchArguments.add('--start-paused');
  
      if (debuggingOptions.useTestFonts)
        launchArguments.add('--use-test-fonts');
  
      if (debuggingOptions.debuggingEnabled) {
        launchArguments.add('--enable-checked-mode');
  
        // Note: We do NOT need to set the observatory port since this is going to
        // be setup on the device. Let it pick a port automatically. We will check
  