A ShoppingCart cannot be cast to B ShoppingCart Type A originates from App_Code -i1hyu4g Version 0 0 0 0 Culture neutral PublicKeyToken null in the context Default at location C Windows Microsoft NET Framework64 v4 0 30319 Temporary ASP NET Files root e259ae05 e80ee239 App_Code -i1hyu4g dll Type B originates from App_Code sck92vwd Version 0 0 0 0 Culture neutral PublicKeyToken null in the context Default at location C Windows Microsoft NET Framework64 v4 0 30319 Temporary ASP NET Files root e259ae05 e80ee239 App_Code sck92vwd dllcapricedunjour.ae