title: Silverlight Unhandled Error
body: <p>I am getting the following error in Silverlight for one of the users. The target runtime is 4.1.10329.0 and the application is built using Silverlight 4. I don't happen to understand what may be the issue. Looks like it is trying to load something on LoadComponent and failing:</p>
  
  <pre><code>Message: Unhandled Error in Silverlight Application 
  Parser_CreateFromValue_CannotConvertInitializationText]
  Arguments: PropertyChanged,System.Windows.Data.UpdateSourceTrigger
  Debugging resource strings are unavailable. Often the key and arguments provide   
  sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/? 
  linkid=106663&amp;Version=4.1.10329.0&amp;File=System.Windows.dll&amp;Key=
  Parser_CreateFromValue_Cannot    ConvertInitializationText 
  [Line: 582 Position: 273]    at    
  System.Windows.Application.LoadComponent(Object   component, Uri resourceLocator)
  at Samplexxx.MainPage.InitializeComponent()
  at Samplexxx.MainPage..ctor()
  at Samplexxx.App.Application_Startup(Object sender, StartupEventArgs e)
  at MS.Internal.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate  
  handlerDelegate, Object sender, Object args)
  at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs,
  Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)
  </code></pre>
  
  <p>Any ideas on what could be the issue?</p>