><a href="../dart-core/UnsupportedError-class.html">UnsupportedError</a></li>
    </ol>
  </div>

  <div id="dartdoc-main-content" class="col-xs-12 col-sm-9 col-md-8 main-content">
      <div><h1><span class="kind-class">UnimplementedError</span> class </h1></div>

    <section class="desc markdown">
      <p>Thrown by operations that have not been implemented yet.</p>
<p>This <a href="../dart-core/Error-class.html">Error</a> is thrown by unfinished code that hasn't yet implemented
all the features it needs