Error in IIS due to version change of AJAX

Posted on 2011-05-11
Last Modified: 2012-05-11

I have an IIS with multiple projects on it. Most use AJAx 3.0.. My newest one is using AJAX 3.5 (We are on VS 2008 not 2010).. This works fine.

Now I am attempting to update my other projects to be of the same version. I got one project to work with the AJAX 3.5 when run locally but when XCopied to IIS it gives me the following error.

Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

I have since uninstalled it from the IIS, cleared all files to it, deleted the Deployment project for this project, recreated it,reloaded the project & the Deployment project and reinstalled it with the new msi..

Still same error..

Attached is the full error screen.
Question by:moosetracker
    LVL 13

    Accepted Solution

    LVL 1

    Author Closing Comment

    I just surfed the net and found the very same website.. The Quick fix does not work, and tells you it doesn't like the Script Manager, change to ToolkitScriptManager.

    Although I haven't tried it, I feel pretty confident about the "Real Fix" information.

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