title: Using JSF 2.2.5 with Google App Engine
body: <p>I have used Google App Engine for Python development, and I have some experience of Enterprise Java development using JSF2 on Tomcat.</p>
  
  <p>However, I have been following <a href="http://www.mkyong.com/google-app-engine/google-app-engine-jsf-2-example/" rel="nofollow">this guide</a> to set up GAE with JSF2, but cannot get it to work.  The application builds with no errors, but throws a warning at runtime:</p>
  
  <p><code>WARNING: failed JettyContainerService$ApiProxyHandler@70e71bb9: java.lang.NoSuchFieldError: EnableTransitionTimeNoOpFlash</code></p>
  
  <p>Attempting to visit the <strong>(local)</strong> web application address in a browser shows a 404 error.</p>
  
  <p>A Google search and search of StackOverflow returned zero results for this error.  Any help would be very much appreciated, as I'm using these technologies for my thesis.</p>