Revision history [back]

Maybe this is a copy-paste issue but your local_costmap_params.yaml looks odd. The one from the wiki looks like this:

local_costmap:
  global_frame: odom
  robot_base_frame: base_link
  update_frequency: 5.0
  publish_frequency: 2.0
  static_map: false
  rolling_window: true
  width: 6.0
  height: 6.0
  resolution: 0.05

There's two things to notice here: everything is indented under local_costmap and the lack of a leading /. That leading / will push your frames to a global namespace, which is something that you may not want. I suggest reading @Jakub's excellent answer on how to setup a simulation of multiple robots for navigation.

Despite the answer being old (August of 2012) it's still mostly relevant. You will have to change some of the node names in use (Hydro?), but this is what I used to get my multi-robot simulation up and running and I'm using Indigo.

Without your tf tree this is just a guess.