serializing session state in asp.net
I'm trying to store session state in SQL instead of InProc in our nopcommerce 1.9 install. When I make the requisite changes to the web.config I get this error: Server Error in '/' Application. Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and as a result non-serializable objects or MarshalByRef objects are not permitted. The same restriction applies if similar serialization is done by the custom session state store in 'Custom' mode. Description: An unhandled exception occurred during the execution of the current