The ROS Wiki is for ROS 1. Are you using ROS 2 (Dashing/Foxy/Rolling)? Check out the ROS 2 Documentation
Is your network set up properly and your ROS_MASTER_URI pointing at the right place?
Is your power_node running?
Is your battery monitor running?
Wiki: pr2_dashboard/Troubleshooting (last edited 2010-01-20 01:26:55 by EricBerger)