title: No appenders could be found for logger(log4j)?
body: <p>I have put log4j to my buildpath, but I get the following message when I run my application:</p>
  
  <pre><code>log4j:WARN No appenders could be found for logger (dao.hsqlmanager).
  log4j:WARN Please initialize the log4j system properly.
  log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
  </code></pre>
  
  <p>What do these warnings mean?  Whats the appender here?</p>