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That message is not actually an error unless you are actually working in a multi-robot system. - Eric Perko (Jun 02)

Could you describe what you actually see, what tutorials you have been following to get the nav stack up and running and possible post both your launch files and nav stack config files (or links to them)? - Eric Perko (Jun 02)

Also, after launching things, could you run roswtf in a separate terminal and post the output? - bhaskara (Jun 06)

I'm not totally sure what I did as I am new to ROS, but i finally got everything working on my robot. That includes the Navigation stack with the Ardros stack, hokuyo_node, and SLAM. The warning appears to not affect anything, but i would like to know the cause of it if at all possible. - D_mangus (Jun 08)