title: Can not find the tag library descriptor for "http://java.sun.com/jsp/jstl/core"
body: <p>I'm trying to use JSTL, but I get the following error:</p>
  
  <pre class="lang-none prettyprint-override"><code>Can not find the tag library descriptor for "http://java.sun.com/jsp/jstl/core"
  </code></pre>
  
  <p>How is this caused and how can I solve it?  </p>