title: Why isn't my GWT web application running properly?
body: <p>I'm going through the book: GWT in Action.  On chapter I'm working through the very first hello world application.  It's all in development mode.
  My issue is that the label in my .java file is not showing up when I open the URL webpage.  There is nothing being displayed versus the Label("Hello World!") appearing.</p>
  
  <p>EDIT:  When at the displayed webpage, I pressed F12 in google chrome to see if I could find anything weird.  Got the error: Failed to load resource: the server responded with a status of 404 (Not Found) </p>
  
  <p>HelloWorld.gwt.xml</p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="UTF-8"?&gt;
      &lt;!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.6.0//EN" "http://google-web-toolkit.googlecode.com/svn/tags/2.6.0/distro-source/core/src/gwt-module.dtd"&gt;
      &lt;module&gt;
          &lt;inherits name="com.google.gwt.user.User" /&gt;
          &lt;source path="client" /&gt;
          &lt;entry-point class="com.example.gwt.client.HelloWorld"&gt;&lt;/entry-point&gt;
      &lt;/module&gt;
  </code></pre>
  
  <p>HelloWorld.java</p>
  
  <pre><code>package com.example.gwt.client;
  
  
  
  import com.google.gwt.core.client.EntryPoint;
  import com.google.gwt.user.client.ui.Label;
  import com.google.gwt.user.client.ui.RootPanel;
  
  public class HelloWorld implements EntryPoint {
  
      @Override
      public void onModuleLoad() {
  
  
          RootPanel.get().add(new Label("Hello World!"));
  
      }
  
  }
  </code></pre>
  
  <p>HelloWorld.html</p>
  
  <pre><code>&lt;!doctype html&gt;
  &lt;html&gt;
    &lt;head&gt;
      &lt;meta http-equiv="content-type" content="text/html; charset=UTF-8"&gt;
      &lt;title&gt;HelloWorld&lt;/title&gt;
      &lt;script type="text/javascript" language="javascript" src=".nocache.js"&gt;&lt;/script&gt;
    &lt;/head&gt;
  
    &lt;body&gt;
      &lt;iframe src="javascript:''" id="__gwt_historyFrame" tabIndex='-1' style="position:absolute;width:0;height:0;border:0"&gt;&lt;/iframe&gt;
  
    &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>My console is displaying this after I run it as a web application:</p>
  
  <pre><code>[WARN] Server class 'org.eclipse.jetty.servlet.listener.ELContextCleaner' could not be found in the web app, but was found on the system classpath
     [WARN] Adding classpath entry 'file:/C:/Users/Qs/Desktop/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/gwt-dev.jar' to the web app classpath for this session
     For additional info see: file:/C:/Users/Qs/Desktop/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.6.0/gwt-2.6.0/doc/helpInfo/webAppClassPath.html
  </code></pre>