InvalidCastException: 型 'System.IO.MemoryStream' のオブジェクトを型 'Quicker.Common.ActionItem' にキャストできません。
StackTrace:
   場所 Quicker.Domain.Services.ActionEditMgr.VFB6Fb89LWA(ContextMenu  , ActionProfile  , Int32  , Int32  , Window  )
   場所 Quicker.Domain.Services.ActionEditMgr.BuildMenuForActionButton(ContextMenu menu, ActionItem action, ActionProfile profile, Int32 row, Int32 col, Window ownerWindow, ActionTrigger actionTrigger, Boolean showDelete)
   場所 Quicker.View.PopupWindow.JOnVflFvQeU(ActionButton  )
   場所 Quicker.View.PopupWindow.n1vVfVU0dKF(Object  , MouseButtonEventArgs  )
   場所 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   場所 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   場所 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   場所 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   場所 System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   場所 System.Windows.Input.InputManager.ProcessStagingArea()
   場所 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   場所 System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   場所 System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   場所 System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   場所 System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   場所 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   場所 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   場所 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   場所 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)