title: Cannot run the rejoin-stack.sh script
body: <p>I got devstack today, but I've been going through a problem. Whenever I
  restarted my virtualbox, I can't run the rejoin-stack.sh script. So that means I can't get into the horizon. Anyone can help me? Thank you.</p>
  
  <p>PS : When I run the command rejoin-stack.sh. This message appears "Could not find. / Stack-screenrc file; stack.sh have you run yet?" </p>