title: eclipse juno jstl error cannot find tag lib
body: <p>I have recently upgraded my Eclipse to Juno. Now when I open my Spring MVC project all my jsp files are marked with errors. The error is on this line</p>
  
  <pre><code>    &lt;%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%&gt;      
  </code></pre>
  
  <p>And the error message is:</p>
  
  <pre><code>    Can not find the tag library descriptor for "http://java.sun.com/jsp/jstl/core"
  </code></pre>
  
  <p>I tried creating a fresh workspace and checking out my project from svn. This had no effect.</p>
  
  <p>I have found that I can fix this by opening each file, making some trivial change and saving the file. Needless to say, this is not a very scalable fix. </p>
  
  <p>Any ideas?</p>