title: Web application version is unsupported. Upgrade web.xml to version 2.4 or newer or use previous version of NetBeans
body: <p>Web application version is unsupported. Upgrade web.xml to version 2.4 or newer or use previous version of NetBeans.</p>
  <p><a href="https://i.stack.imgur.com/fsQIO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fsQIO.png" alt="enter image description here" /></a></p>