title: How to fix "Cannot change version of project facet Dynamic Web Module to 2.4" in Eclipse?
body: <p>My WAR project was working fine but when I updated to latest version of STS (3.5.0.M2) I get the following error:</p>
  
  <blockquote>
    <p>Cannot change version of project facet Dynamic Web Module to 2.4</p>
  </blockquote>