Soap App Delegate error
<p>please tell me what this error means:</p>

<blockquote>
  <p>/Users/macbook2/Desktop/20/Soap
  2/MainWindow.xib:3:0 The
  'viewController' outlet of 'Soap App
  Delegate' is connected to 'Root View
  Controllers' but 'RootViewControllers'
  is not a kind of 'SoapViewController'
  as specified by the outlet type.</p>
</blockquote>
