title: install graphite +statsd ....getting error unknown carbon-cache
body: <p>I am following these instructions(<a href="https://www.digitalocean.com/community/tutorials/how-to-install-and-use-graphite-on-an-ubuntu-14-04-server">https://www.digitalocean.com/community/tutorials/how-to-install-and-use-graphite-on-an-ubuntu-14-04-server</a>)
   to install statsd and graphite, but am running into below stated problem. Seems like this is not a graphite issue but python issue. Does anybody know how to resolve this?</p>
  
  <pre class="lang-none prettyprint-override"><code>~/build &gt; sudo service carbon-cache start
   * Starting Graphite backend daemon carbon-cache
  Traceback (most recent call last):
    File "/usr/bin/carbon-cache", line 32, in &lt;module&gt;
      run_twistd_plugin(__file__)
    File "/usr/lib/python2.7/dist-packages/carbon/util.py", line 90, in run_twistd_plugin
      config.parseOptions(twistd_options)
    File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 604, in parseOptions
      usage.Options.parseOptions(self, options)
    File "/usr/local/lib/python2.7/dist-packages/twisted/python/usage.py", line 269, in parseOptions
      raise UsageError("Unknown command: %s" % sub)
  twisted.python.usage.UsageError: Unknown command: carbon-cache
  </code></pre>