log4cxx error on node shutdown in diamondback rc3

edit

I installed diamondback RC3 yesterday on a machine that was upgraded from Ubuntu 9.04 to 10.04 over the weekend. (Maybe upgrading instead of a fresh install was a bad idea?)

log4cxx seems to be having a problem. Every time I ctrl+c a launch file that I ran, I get an error that looks like this:

log4cxx: No appender could be found for logger (ros.sbpl_arm_planner).
log4cxx: Please initialize the log4cxx system properly.

or

log4cxx: No appender could be found for logger (ros.planning_environment).
log4cxx: Please initialize the log4cxx system properly.

Is log4cxx set up incorrectly? Has anyone seen this before?