title: Briefcase optional package on Virtuoso
body: <p>I've installed Virtuoso open source and some of its packages (including Briefcase) on a Ubuntu VM following this <a href="http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VOSUbuntuNotes" rel="nofollow">guide</a>. Everything was OK, but after restarting Virtuoso server when I tried to access the Briefcase application it failed. The error is:</p>
  
  <pre><code>Error 07S01
  
  SR180: Extra arguments to , takes only 0
  </code></pre>
  
  <p>Any solution?</p>