title: Object reference not set to an instance of an object in Windows 8 app
body: <p>So after looking through countless sources trying to find out what this truly means, I have found absolutely nothing useful.  Let's clear this up, I KNOW WHAT THE ERROR MEANS.  But I have no idea what is causing it.  My code is as follows:</p>
  
  <pre><code>private void Button_Click_1(object sender, RoutedEventArgs e)
  {
      ListView selector = this.itemListView;
      FeedItem item = selector.SelectedItem as FeedItem;
      if (item != null &amp;&amp; this.Frame != null)
      {
          this.Frame.Navigate(typeof(WebViewPage), item.Title); //This line is the problem
      }
  }   
  </code></pre>
  
  <p>What I'm attempting to do is navigate to a full webview page based on a selection from the itemListView.  I do this through using an AppBar button.  When I step through this code line by line, everything runs as intended until I attempt to navigate.  Immediately before the navigation, none of my objects are null (according to intellisense and the fact that the if statement is entered), and it remains this way after I step through the navigation.  The program doesn't fail, it just shows up as an exception in the Intellitrace box, and the navigation never occurs, leaving the user to click the appbar button as much as they please to no avail.</p>
  
  <p>Webview page code (According to IntelliTrace, I never actually reach any code in this page).</p>
  
  <pre><code>protected override void LoadState(Object navigationParameter, Dictionary&lt;String,Object&gt; pageState)
  {
      FeedItem item = FeedUtilities.GetItemByTitle((string)navigationParameter);
      pageTitle.DataContext = item;
  
      itemContentWebView.Navigate(item.Link);
  }
  </code></pre>
  
  <p>This has been frustrating me for a couple days now, so any and all help is greatly appreciated.</p>