[Solved] RadAjaxManager Errors

[Kosal]

I am using RadAjaxManager...it works when I run the web app on my localhost but throws the following errors when I try to run it on our development server. 
I've tried reinstalling the AJAX framework thinking maybe that was the problem, but it didn't fix the problem.
Any help on this would be greatly appreciated.

Method not found: 'Void System.Web.UI.ScriptManager.RegisterStartupScript(System.Web.UI.Page, System.Type, System.String, System.String, Boolean)'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.MissingMethodException: Method not found: 'Void System.Web.UI.ScriptManager.RegisterStartupScript(System.Web.UI.Page, System.Type, System.String, System.String, Boolean)'.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[MissingMethodException: Method not found: 'Void System.Web.UI.ScriptManager.RegisterStartupScript(System.Web.UI.Page, System.Type, System.String, System.String, Boolean)'.] Telerik.Web.UI.RadAjaxControl.PerformRender() +0 Telerik.Web.UI.RadAjaxControl.OnPageRender(HtmlTextWriter writer, Control page) +1222 Telerik.Web.UI.RadAjaxControl.RenderPageInAjaxMode(HtmlTextWriter writer, Control page) +33 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +2113547 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24 System.Web.UI.Page.Render(HtmlTextWriter writer) +26 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1896

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Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832

[Steve]

Hi Kosal,

Please take a look at this forum thread that elaborates on the solution to this problem.

Greetings,
Steve
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[Kosal]

Steve,

Thanks for the link.
I had already done that and it didn't work...i guess it was the wrong version.  The link provided in the other thread solved my problem.

Thanks,

-Kosal

[DotNetGuy]

I went through all of these threads and everything mentioned throughout them I had.  I have the current asp.net AJAX installed, I have the current Prometheus Telerik components (that i know of), and I have the System.Web.UI (Ajax) installed in the GAC but i am still getting this error.
Could you please give me some insight?

When I start a new project and I add the RadAjaxPanel only (with a script manager on the page ofcourse) I get this error.

please let me know ASAP on a solution to this issue.

Thanks

[Sebastian]

Hi Jerrod,

Can you please double-check that you are using the latest official release of ASP.NET AJAX along with the Q1 2008 release of RadControls for ASP.NET AJAX (formerly "Prometheus") in your project? If the issue persists (after confirming that) in your old web site and when you start a new one from scratch, please isolate a stripped working version of your project and send it attached to a formal support ticket. We will review it carefully and will advice you further.

Best regards,
Stephen
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center