单据扩展之后打开报错

单据扩展后加了字段，现在打开扩展的单据报错Object reference not set to an instance of an object详细信息： at Kingdee.BOS.Core.Metadata.FieldElement.FieldAppearance.CreateColumns(Int32 colIndex) at Kingdee.BOS.Core.Metadata.EntityElement.EntityAppearance.CreateEntryView()
at Kingdee.BOS.Core.Metadata.EntityElement.EntityAppearance.CreateControl()
at Kingdee.BOS.Core.Metadata.EntityElement.EntryEntityAppearance.CreateControl()
at Kingdee.BOS.WinForm.Ctrl.UIBuilder.AddControl(ControlAppearance ctl)
at Kingdee.BOS.WinForm.Ctrl.UIBuilder.AddControls(LayoutInfo layoutInfo)
at Kingdee.BOS.WinForm.Ctrl.UIBuilder.AddControl(ControlAppearance ctl)
at Kingdee.BOS.WinForm.Ctrl.UIBuilder.AddControls(LayoutInfo layoutInfo)
at Kingdee.BOS.DomainModelDesigner.View.DynamicFormDesigner.InitDesignerContent(LayoutInfo layout, BusinessInfo businessInfo)
at Kingdee.BOS.DomainModelDesigner.View.DynamicFormDesigner.InitDesigner()
at Kingdee.BOS.DomainModelDesigner.View.DynamicFormDesigner.CreateView(IViewManager viewManager, DomainModel domainModel, Object data)
at Kingdee.BOS.DomainModelDesigner.ViewManager.OpenForm(SolutionNode currNode, Enu_SolutionAction action)
at Kingdee.BOS.DomainModelDesigner.ViewManager.SolutionView_SolutionAction(Object sender, SolutionActionArgs e)
错误数据： System.Collections.ListDictionaryInternal