title: Passenger could not be initialized because of this error: The user that PassengerDefaultUser refers to, '$(APACHE_RUN_USER)', does not exist
body: <p>Passenger could not be initialized because of this error: The user that PassengerDefaultUser refers to, '$(APACHE_RUN_USER)', does not exist.
   Apache/2.2.22 (Ubuntu) configured -- resuming normal operations</p>
  
  <p>I'm getting this error, but the user www-data, used by apache2 is there. </p>
  
  <p>Running on UBUNTU 13.04. Passenger version 4.0.7</p>
  
  <p>Any ideas?</p>