title: How to import zookeeper source code to idea
body: <p><a href="https://i.stack.imgur.com/iqEhH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iqEhH.png" alt="enter image description here"></a></p>
  
  <p>I get the following error, as the picture show, idea cannot identity any class , cannot find any declaration to go. so, what should i do to make it work</p>