[yaala] Unavailable aggregation error

[Jeff Fishbaugh]

Trying to fix the below error and used the latest RPM from the site. Am
I perhaps missing a required module or something? If so which one?!?
Help appreciated as I really like this Log Analyzer...simple, small, and
very effective!


[root at www9 ~]# /var/lib/yaala/yaala
--config /etc/yaala/yaala-datafeed_log.conf 
lib/Yaala/Data/Core.pm: Unavailable aggregation requested:
``requests''. Returning 0. lib/Yaala/Data/Core.pm: Unavailable
aggregation requested: ``bytes''. Returning 0. lib/Yaala/Data/Core.pm:
Unavailable aggregation requested: ``requests''. Returning 0.
lib/Yaala/Data/Core.pm: Unavailable aggregation requested: ``bytes''.
Returning 0.Can't call method "png" on an undefined value at
lib/Yaala/Report/GDGraph.pm line 200.