title: eclipse checkstyle error cannot initialize module TreeWalker - TreeWalker is not allowed as a parent of FileLength
body: <p>I get the following error when I try to load a user defined check style template.</p>
  
  <pre><code>cannot initialize module TreeWalker - TreeWalker is not allowed as a parent of FileLength
  </code></pre>
  
  <p>I think it might be due to the incompatibilty with checkstyle version in my eclipse.
  How will I be able to find the appropriate checkstyle version with checkstyle xml file</p>