title: Nutch message "No IndexWriters activated" while loading to solr
body: <p>I have run nutch crawler as per nutch tutorial <a href="http://wiki.apache.org/nutch/NutchTutorial" rel="noreferrer">http://wiki.apache.org/nutch/NutchTutorial</a> but when i started loading it to solr i am getting this message i.e. "<strong>No IndexWriters activated - check your configuration</strong>" </p>
  
  <pre><code>bin/nutch solrindex http://localhost:8983/solr crawl/crawldb/ -dir crawl/segments/
  Indexer: starting at 2013-07-15 08:09:13
  Indexer: deleting gone documents: false
  Indexer: URL filtering: false
  Indexer: URL normalizing: false
  **No IndexWriters activated - check your configuration**
  
  Indexer: finished at 2013-07-15 08:09:21, elapsed: 00:00:07
  </code></pre>