KeyNotFoundException: 给定关键字不在字典中。
StackTrace:
   在 System.Collections.Concurrent.ConcurrentDictionary`2.get_Item(TKey key)
   在 Quicker.Settings.Pages.Tools.PowerKeysManagementPage.get_CurrentPowerKey()
   在 Quicker.Settings.Pages.Tools.PowerKeysManagementPage.jXVj0Gmfm6()
   在 Quicker.Settings.Pages.Tools.PowerKeysManagementPage.xLsj2WYJGk(Object  , RoutedEventArgs  )
   在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   在 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   在 System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
   在 System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
   在 MS.Internal.LoadedOrUnloadedOperation.DoWork()
   在 System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
   在 System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   在 System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   在 System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)