title: The content of elements must consist of well-formed character data or markup
body: <pre><code>&lt;table id="header" align="center"&gt;
      &lt;#assign PI = primaryId /&gt;
      &lt;#if (PI.getIdentified())&gt;&lt;table id="header" align="center"&gt;
  </code></pre>
  
  <p>I run into the following error any help appreciated,I try to read some other related topics but I can't understand exactly what happen. The error pointed to  &lt;#assign PI = primaryId /> .</p>
  
  <p>[Fatal Error] header.ftl:19:23: The content of elements must consist of well-formed character data or markup</p>