title: 0x800a1391 - JavaScript runtime error: '$' is undefined: directlink works but solution explorer file doesn't
body: <p>I got this error because VS can't find the jquery file. I have added it in solution explorer and added the source in my master page's head but VS can't find it for some unknown reason. I tried json2 and it doesn't work either. Finally I tried to use the directlink to jquery downloadpage and it worked and the problem was solved. </p>
  
  <p>But, this isn't a clean fix since it will not work if the jquerysite stops working so I want a better fix do this problem. Do you have any tips?</p>
  
  <p>This is the easy fix:  </p>
  
  <pre><code>&lt;script src="http://code.jquery.com/jquery-1.9.1.min.js"&gt;&lt;/script&gt;
  </code></pre>