title: .jsp file not working for Google App Engine guestbook tutorial
body: <p>I've been following the Google App Engine tutorials, and I'm having a problem with the .jsp file. Here is the code from Google: <a href="http://code.google.com/appengine/docs/java/gettingstarted/usingjsps.html" rel="noreferrer">Using JSPs</a>. I'm using Eclipse to build my project, and for some reason when I add the <code>guestbook.jsp</code> file to the war directory, it <strong>instantly</strong> gets a red error icon. I can't double click to open guestbook.jsp either. What could be going on here?
  <img src="https://i.stack.imgur.com/lwCti.jpg" alt="enter image description here"></p>