dear all i was trying to publish an application developed on MS VS.net 2008 but when i published this application i got this error: Server Error in '/' Application. Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: Unrecognized attribute 'type'. Source Error: Line 2: <configuration> Line 3: <configSections> Line 4: <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWeb ExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> Line 5: <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSe ctionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> Line 6: <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScr iptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> Source File: E:\Inetpub\Flashy\Flashy\web.config Line: 4 Version Information: Microsoft .NET Framework Version:1.1.4322.2379; ASP.NET Version:1.1.4322.2379