title: mono log4net FileAppender won't write my message
body: <p>I'm ported one of our mvc 4 project to mono. Everything works fine but log4net not write my messages to file.</p>
  
  <p>For instance;</p>
  
  <pre><code>_logger.InfoFormat("Address {0} Callback to {1}", receiveAddress.input_address, receiveAddress.callback_url);
  
  [2013-10-11 05:25:39,750 [Threadpool worker] ERROR WrapperAPI.Controllers.NotificationController
  </code></pre>
  
  <p>My conversion pattern is;</p>
  
  <pre><code>&lt;conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" /&gt;
  </code></pre>
  
  <p>log4net not write message section.</p>