Server Error in '/' Application.

Item has already been added. Key in dictionary: 'SiteUrl'  Key being added: 'SiteUrl'

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.ArgumentException: Item has already been added. Key in dictionary: 'SiteUrl'  Key being added: 'SiteUrl'

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:

[ArgumentException: Item has already been added. Key in dictionary: 'SiteUrl'  Key being added: 'SiteUrl']
   System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add) +14304563
   Industry.Sys.LoadAdminTmp(String url) in D:\Work\MTnets\trunk\Industry\Industry\CodeLib\Sys.cs:226
   Industry._Default.Page_Load(Object sender, EventArgs e) in D:\Work\MTnets\trunk\Industry\Industry\Default.aspx.cs:119
   System.Web.UI.Control.LoadRecursive() +71
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3178


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34280

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