Server Error in '/TangoWebServices13/Tango' Application.

Value cannot be null.
Parameter name: g

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.ArgumentNullException: Value cannot be null.
Parameter name: g

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:


[ArgumentNullException: Value cannot be null.
Parameter name: g]
   System.Guid..ctor(String g) +12716243
   TangoWebHelperLib.TangoUserSession..ctor(String strHostedDatabaseGuid) +68
   TangoWebHelperLib.TangoUserSessionHelper..ctor(TangoWebPage oTangoWebPage) +93
   TangoWebHelperLib.TangoWebPage.get_TangoUserSession() +129
   TangoWebHelperLib.TangoWebPageWithSession.Page_Load(Object sender, EventArgs e) +59
   Tango.FieldScanRequests.FieldScanRequestBase.Page_LoadEventSink(Object sender, EventArgs e) in D:\a\1\s\FieldScanRequests\FieldScanRequestBase.cs:20
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4330.0