Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 69:             productDocument = Session.Item("productDocument")
Line 70:         End If
Line 71:         Dim totalVariants = (From el In productDocument.Descendants("variant")).Count
Line 72:         If totalVariants = 0 Then
Line 73:             Session.Remove("selectedConfigurationElement")

Source File: C:\inetpub\webs\medialabonline.it\demo.clothingecommerce82\product.aspx.vb    Line: 71

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   product.product_Load(Object sender, EventArgs e) in C:\inetpub\webs\medialabonline.it\demo.clothingecommerce82\product.aspx.vb:71
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Control.OnLoad(EventArgs e) +107
   System.Web.UI.Control.LoadRecursive() +89
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1532


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4676.0