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我想從asp.net應用程序調用工作流服務,並且出現以下錯誤。任何想法或幫助pleasE?工作流服務錯誤

System.ServiceModel.FaultException:由於WorkflowInstance'2dde84a5-da6e-4951-a404-d659fb23b5bd'已終止,操作無法執行。服務器堆棧跟蹤:System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime操作,ProxyRpc & rpc)at System.ServiceModel.Channels.ServiceChannel.Call(String action,Boolean oneway,ProxyOperationRuntime operation,Object [] ins,Object [] (System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall,ProxyOperationRuntime操作)在System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage消息)異常rethrown在[0]:在System.Runtime.Remoting。 Proxies.RealProxy.HandleReturnMessage(即時聊天reqMsg,即時聊天retMsg)在System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData & MSGDATA,的Int32類型)在ServiceReference1.IService.TestSimple(字符串& OUT2,字符串輸入)在ServiceReference1.ServiceClient .TestSimple(字符串& out2,字符串輸入)在c:\ Users \ m arios \ AppData \ Local \ Temp \ Temporary ASP.NET Files \ website2 \ dd8a5636 \ 5104a2dc \ App_WebReferences.yntecwjx.0.cs:第51行位於_Default.Page_Load(對象發件人,EventArgs e)位於c:\ Users \ marios \ Documents \ Visual Studio 2010 \ WebSites \ WebSite2 \ Default.aspx.cs:行34

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