title: Cscope unable to create inverted index. Why?
body: <p>The following command works fine:   </p>
  
  <pre><code>   $&gt;cscope -b -R
  </code></pre>
  
  <p>However, the option for inverted index does not work:</p>
  
  <pre><code>$&gt;cscope -b -q -k -R
  Input file specified two times.
  
  cscope: cannot create inverted index; ignoring -q option
  cscope: removed files ncscope.in.out and ncscope.po.out
  </code></pre>
  
  <p>I googled this one and found some hits. But could not find any answers or solutions. Any insights are greatly appreciated.</p>