title: BlackBerry "symbol integer.valueof not found" error when starting app on simulator
body: <p>Not sure what happened here, I added some new code and now I'm getting this error when trying to run the app on the BlackBerry simulator from Eclipse.</p>
  
  <p>From the console:</p>
  
  <pre><code>[0.0] Starting MyApp
  [0.0] Symbol 'Integer.valueOf' not found.[0.0] Error starting MyApp: Symbol 'Integer.valueOf' not found.
  </code></pre>
  
  <p>This appears both in the debugger and on-screen as a popup with an "OK" button.</p>
  
  <pre><code>Thread [net_rim_bb_ribbon_app(83)id=384704512] (Suspended (exception RuntimeException)) 
      ApplicationEntryPoint.run() line: 309   
      ApplicationEntry.invoke() line: 503 
      RibbonLauncherImpl.launch(ApplicationEntry) line: 1950  
      RibbonLauncherImpl.launch() line: 1935  
      ApplicationMenu.trackwheelClick(int, int) line: 874 
      ApplicationMenu.navigationClick(int, int) line: 885 
      ApplicationMenu(Screen).dispatchNavigationEvent(int, int, int, int, int) line: 678  
      UiEngineImpl.processMessage(Object, Message, boolean) line: 1612    
      RibbonLauncherApp(Application).processNextMessage(Message) line: 1701   
      RibbonLauncherApp(Application).enterEventDispatcher() line: 986 
      RibbonLauncherApp.main(String[]) line: 87
  </code></pre>
  
  <p>Any help at all? I can't think of anything which I changed to cause this to happen. Another app runs perfectly ok. Many thanks.</p>