title: Entity was referenced but not declared
body: <p>In my xml file of Spring MVC application for using tiles, I have written the following -</p>
  
  <pre><code>&lt;definition name="dashboard" extends="base.definition"&gt;
          &lt;put-attribute name="title" value="Dashboard - CMS &amp;diams; &amp;reg; Galactic NetOne" /&gt;
          &lt;put-attribute name="body" value="/WEB-INF/views/dashboard.jsp" /&gt;
  &lt;/definition&gt;
  </code></pre>
  
  <p>However, <code>&amp;diams; and &amp;reg;</code> give the error that they are referenced but not declared. Please help.</p>