title: HTTP ERROR: 404 missing core name in path with solr
body: <p>I am new to Solr, after installing it in ubuntu 8.10, when I was trying exampledocs to index , as per this <a href="http://geekblog.vodpod.com/2009/03/09/using-solr-lucene-for-search-with-ruby-on-rails/" rel="noreferrer">link</a>, I got this  error:</p>
  
  <blockquote>
    <p>HTTP ERROR: 404  missing core name in path</p>
  </blockquote>
  
  <p>This is in Jetty.</p>
  
  <p>What shall I do, in order to solve this?</p>