2

I recently switched to VS 2010. While using AjaxToolkit version=4.1.51116.0, I am getting run-time error :

Could not load type 'System.Web.Script.AjaxFrameworkAssemblyAttribute' from assembly 'System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.**

This error is coming while using any of the AJAX toolkit control. I am using ToolkitScriptManager.

How to solve this error? suggestions are greatly appreciated.

nitendra jain
  • 433
  • 4
  • 8
  • 16
  • I'm getting the same error. Using xsp4, I get the following error messages in console: Missing method .ctor in assembly AjaxControlToolkit.dll, type System.Web.Script.AjaxFrameworkAssemblyAttribute Can't find custom attr constructor image: AjaxControlToolkit.dll mtoken: 0x0a000032 – Zach Saw May 16 '12 at 05:20
  • [Mono System.Web.Extensions in 4.0 vs MS.NET 4.0](http://go-mono.com/status/status.aspx?reference=4.0&profile=4.0&assembly=System.Web.Extensions) shows System.Web.Script and AjaxFrameworkAssemblyAttribute as "Missing: we need it". [asp.net form](http://forums.asp.net/t/1760395.aspx) suggests reverting to the version you're already using. I had no luck either – Will Jan 02 '14 at 16:57

0 Answers0