Configuration error after deploying asp.net files into iis server

Question

I am getting the following error which deploying my code in the production server. Code is working fine in development.

    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: Could not load file or assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. (E:\QA\form\web.config line 103)

Source Error: 


Line 101:    </httpHandlers>
Line 102:    <httpModules>
Line 103:     <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
Line 104:    </httpModules>
Line 105:   </system.web>


Source File: E:\QA\form\web.config    Line: 103 


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Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053

Please advice !

Answer 1

The server doesn't have .NET 3.5 SP1 installed on it.

Answer 2

Your code is depending on the .Net 3.5 runtime, but your server only has .Net 2.0.

The instructions here will let you install the components you need on the server. You need at least the ASP.NET AJAX 1.0 download, which should run with .Net 2.0.