title: What can be the cause of "use of undeclared identifier LOG_LEVEL_VERBOSE" message
body: <p>I'm trying to configure cocoalumberjack and when I've added <code>ddLogLevel</code> set to <code>LOG_LEVEL_VERBOSE</code> XCode throws "use of undeclared identifier" error. Why is that? How to avoid?</p>
  
  <p><img src="https://i.stack.imgur.com/Kywjf.png" alt="enter image description here"></p>