TypeLoadException
   at ActionPanelControl.Utilities.WindowOp.HideManager.DoHide()
   at ActionPanelControl.Utilities.WindowOp.HideManager.DoWelt()
   at ActionPanelControl.MainWindow.<Init>b__12_2(Object s, EventArgs e)
   at System.Windows.Threading.DispatcherTimer.FireTick(Object unused)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)