Asl 2 no messages log

I am running ASL 2 on a Pi. I used to check the /var/log/asterisk directory for ’ messages ', and it showed a log of software actions. Now this file is always empty? How do I fix this?

That log file is generated by Asterisk, not ASL, even though parts logged are ASL in nature.
https://wiki.asterisk.org/wiki/display/AST/Logging+Configuration

I have one install of 2.0b6 and logs fine.
But I used a manual install on a virtual machine. I don’t know if there is any known issues with the Pi versions, but I would think if you follow the link above you can see if it is config’d correctly.

What does your /etc/asterisk/logger.conf file show in it under the [logfiles] stanza for the messages.log portion?

console => notice,warning,error
messages => notice,warning,error