title: How to link manually created ViewControllers into TabBar application
body: <p>i created a tabBar app with ARC. So the default set up would automatically provide 2 viewControllers;</p>
  
  <p>1) FirstViewController.h,FirstViewController.m;FirstViewController_iPhone.xib, FirstViewController_iPad.xib</p>
  
  <p>2) SecondViewController.h, SecondViewController.m, SecondViewController_iPhone.xib, SecondViewController_iPad.xib</p>
  
  <p>I wanted to create a new view controller 'ViewController3' but during the file creation process, i can only opt to create for iPad or just iPhone (checkbox 'Targeted for iPad'). I need both iPhone and iPad xibs just like the FirstViewController and SecondViewControllers created for me. So i decided to create the xib manually and continued with the file creation without xibs.</p>
  
  <p>So naturally after that i went on to manually create 2 news xibs; ThirdViewController_iPhone.xib and ThirdViewController_iPad.xib</p>
  
  <p>i added this line into the  original AppDelegeate file:</p>
  
  <pre><code>UIViewController *viewController1, *viewController2, *viewController3;
  if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
      viewController1 = [[FirstViewController alloc] initWithNibName:@"FirstViewController_iPhone" bundle:nil];
      viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController_iPhone" bundle:nil];
      viewController3 = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController_iPhone" bundle:nil]; 
  } else {
      viewController1 = [[FirstViewController alloc] initWithNibName:@"FirstViewController_iPad" bundle:nil];
      viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController_iPad" bundle:nil];
      viewController3 = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController_iPad" bundle:nil];
  }
  self.tabBarController = [[UITabBarController alloc] init];
  self.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, viewController3, nil];
  </code></pre>
  
  <p>I then run the project and got this: Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIViewController _loadViewFromNibNamed:bundle:] loaded the "ThirdViewController_iPhone" nib but the view outlet was not set.'</p>
  
  <p>How do i set the outlet?</p>