an unexpected problem occurred

[SMRFoundation]

NodeXL An unexpected problem occurred. If it occurs again, please copy the details to the clipboard by typing Ctrl-C, then post the details to http://www.codeplex.com/NodeXL/Thread/List.aspx.       Details:       [InvalidCastException]: Return argument has an invalid type.       at System.Runtime.Remoting.Proxies.RealProxy.ValidateReturnArg(Object arg, Type paramType)   at System.Runtime.Remoting.Proxies.RealProxy.PropagateOutParameters(IMessage msg, Object[] outArgs, Object returnValue)   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)   at Microsoft.Office.Interop.Excel.ListColumn.get_Range()   at Smrf.AppLib.ExcelColumnHider.ShowHiddenColumns(ListObject table)   at Smrf.NodeXL.ExcelTemplate.GroupWorksheetReader.ReadWorksheet(Workbook workbook, ReadWorkbookContext readWorkbookContext, IGraph graph)   at Smrf.NodeXL.ExcelTemplate.WorkbookReader.ReadWorkbookInternal(Workbook workbook, ReadWorkbookContext readWorkbookContext)   at Smrf.NodeXL.ExcelTemplate.WorkbookReader.ReadWorkbook(Workbook workbook, ReadWorkbookContext readWorkbookContext)   at Smrf.NodeXL.ExcelTemplate.TaskPane.ReadWorkbook(Boolean bLayOutGraph) OK

This work item was migrated from CodePlex

CodePlex work item ID: '23089' Vote count: '1'

[SMRFoundation]

[tcap479@7/26/2012] Can you tell me when this problem occurs? Does it occur every time, or is it seemingly random?

Thanks, Tony

[SMRFoundation]

[UnknownUser@2/21/2013]