(DBusExplorer:29032): Gtk-CRITICAL **: gtk_tree_store_get_value: assertion `VALID_ITER (iter, tree_store)' failed
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.Exception: Unknown type 
  at GLib.Value.get_Val () [0x00000] 
  at Gtk.TreeStore.GetValue (TreeIter iter, Int32 column) [0x00000] 
  at MainWindow.OnRowSelected (System.Object o, System.EventArgs args) [0x00000] 
  at GLib.Signal.voidObjectCallback (IntPtr handle, IntPtr gch) [0x00000] 
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.Signal.voidObjectCallback(IntPtr handle, IntPtr gch)
   at GLib.Signal.voidObjectCallback(IntPtr , IntPtr )
   at Gtk.Application.gtk_main()
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at DBusViewerSharp.MainClass.Main(System.String[] args)