After installing Roller, I tried to actually start using it. So from the main page I clicked on "New User Registration Page" to create my first user.
"I'm sorry, but the administrator of this site has turned off new user registrations."
How could that be? I was sure I had followed all the steps meticulously. What could have gone wrong? :(
May be I was not thinking straight. I decided to call it a day and think about the problem while driving back home. Next morning, I came back and decided to do the most obvious thing- look at the logs under $CATALINA_HOME/logs/roller.log. The answer was right there. I had not set the value of search.index.dir in my roller-custom.properties, and hence the Roller app wasn't coming up properly.
Roller was pleased, and so was I!
I kept trying to browse different forums to get an answer -- but the answer was all along right there - in the roller logs!