title: AjaxControlToolkit 7.0123 breaks VS2012 Web Application Project
body: <p>I have an existing VS2012 web application that has been running fine until I added in the latest AjaxControlToolkit (7.0123). Initially, I found that the installation broke the behaviour of the UpdatePanel - whereas before I could refresh a page after an asynchronous post-back without repeating the operation I found that after installation the refresh would repeat the previous operation (I guess the post-back was no longer asynchronous).</p>
  
  <p>I then noticed that, at some time in the past, I had commented out a number of the default JavaScript files that are added to a new ASP.NET Web Forms Application so I tried adding them back in. This resulted in an exception: </p>
  
  <blockquote>
    <p>'MsAjaxBundle' is not a valid script name.  The name must end in
    '.js'.</p>
  </blockquote>
  
  <p>I then tried replacing the default <code>&lt;asp:ScriptManager .../&gt;</code> with <code>&lt;ajaxControlToolkit:ToolkitScriptManager .../&gt;</code> this resulted in a new exception</p>
  
  <blockquote>
    <p>Could not load file or assembly 'System.Web' or one of its
    dependencies. The system cannot find the file specified.</p>
  </blockquote>
  
  <p>For sanity, I then created a fresh ASP.NET Web Forms Application (VS2012, Update 2) and ran it. No errors. Using "nuget", I then added the AjaxControlToolkit v7.0123 (the latest release). Ran the application again and I get the original exception again: </p>
  
  <blockquote>
    <p>'MsAjaxBundle' is not a valid script name.  The name must end in
    '.js'.</p>
  </blockquote>
  
  <p>Once again, I replaced  <code>&lt;asp:ScriptManager .../&gt;</code> with <code>&lt;ajaxControlToolkit:ToolkitScriptManager .../&gt;</code> and once again this results in </p>
  
  <blockquote>
    <p>Could not load file or assembly 'System.Web' or one of its
    dependencies. The system cannot find the file specified.</p>
  </blockquote>
  
  <p>Can anybody shed any light on what else I need to do to resolve this? I can find no documentation to say anything needs to be changed manually when adding the toolkit.</p>
  
  <p>Thanks,</p>