title: TCPServer Error: Address already in use - bind(2)
body: <p>Jekyll was working fine for me few weeks back but now all of a sudden it gives me the following error:</p>
  
  <pre><code>TCPServer Error: Address already in use - bind(2)
  INFO  WEBrick::HTTPServer#start: pid=7300 port=4000
  
   % lsof -i :4000
   &lt;fetches nothing&gt;
  </code></pre>
  
  <p>Even though nothing is running on the port. Below are the details:</p>
  
  <pre><code> % jekyll --version
  Jekyll 0.11.2
   % where jekyll
  /home/bhaarat/.rvm/gems/ruby-1.9.2-p290/bin/jekyll
  /usr/bin/jekyll
   % ruby --version
  ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]
   % rvm --version
  rvm 1.10.0 
  </code></pre>
  
  <p>Here is the output</p>
  
  <pre><code> % jekyll --server
  Configuration from /home/bhaarat/blog/omnipresent.github.com/_config.yml
  Auto-regenerating enabled: /home/bhaarat/blog/omnipresent.github.com -&gt; /home/bhaarat/blog/omnipresent.github.com/_site
  [2012-04-21 13:46:40] regeneration: 38 files changed
  [2012-04-21 13:46:40] INFO  WEBrick 1.3.1
  [2012-04-21 13:46:40] INFO  ruby 1.9.2 (2011-07-09) [i686-linux]
  [2012-04-21 13:46:40] WARN  TCPServer Error: Address already in use - bind(2)
  [2012-04-21 13:46:40] INFO  WEBrick::HTTPServer#start: pid=7382 port=4000
  </code></pre>
  
  <p>I know the address isn't in use and jekyll is probably breaking for some other reason but throwing that error. What are my options? I've tried re-installing as well.</p>