Server Error in '/WebApproval' Application.

A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - 管道的另一端上无任何进程。)

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Exception: A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - 管道的另一端上无任何进程。)

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[Exception: A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - 管道的另一端上无任何进程。)]
   DBUtility.DbHelperSQL.Query(String SQLString) +181
   Approval.DAL.AllowableList.Get_Datalist(String sql) +10
   Approval.BLL.AllowableListBLL.Get_DataTable(String sql) +10
   Approval.Web.ResultGet.DataBind() +708
   Approval.Web.ResultGet.Page_Load(Object sender, EventArgs e) +35
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +85
   System.Web.UI.Control.OnLoad(EventArgs e) +74
   System.Web.UI.Control.LoadRecursive() +120
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2842


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34237