在单据列表，录入过滤条件查询单据的时候提示异常，什...

在单据列表，录入过滤条件查询单据的时候提示异常，什么问题

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Object reference not set to an instance of an object., at Kingdee.BOS.Client.Core.KDFilterRow.ToJSONObject()
at Kingdee.BOS.Client.Core.FilterQuickerEntity.GetSetting()
at Kingdee.BOS.XPF.Component.CtrlProxy.Filter.KDFilterQickerProxy.GetSetting()
at Kingdee.BOS.XPF.Component.CtrlProxy.Filter.KDFilterProxyBase`1.Validating(Boolean showRet)
at Kingdee.BOS.Client.Core.KDDynamicFormProxyBase`1.ControlForceCommit()
at Kingdee.BOS.Client.Core.KDDynamicFormProxyBase`1.InvokeCloseAction()
at Kingdee.BOS.XPF.Component.CtrlProxy.KDTabItemProxy.Control_RequestClosing(Object sender, CancelEventArgs e)
at Kingdee.BOS.XPF.Controls.KDTabItem.OnClosing(CancelEventArgs e)
at System.Windows.Controls.Button.OnClick()
at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)