title: VS2012 Web Forms Project breaks after upgrading JQuery to V 1.8.1
body: <p>I created a web Forms project using Visual Studio 2012 and then upgraded JQuery library to 1.8.1 using nuget package manager.  When I try to run the project, I get the following error.  Any ideas?</p>
  
  <pre><code>&gt; Unhandled exception at line 6, column 2 in
  &gt; http://localhost:49618/Scripts/jquery-ui-1.8.23.js
  &gt; 
  &gt; 0x800a1391 - Microsoft JScript runtime error: 'jQuery' is undefined
  </code></pre>
  
  <p>I just noticed that this error occurs only with IE9, but not with Chrome or Firefox browsers.</p>