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DWB searches for the footprint here

You'll want to set the footprint parameter somewhere in your namespace. Right now, I'm guessing you have the parameter /move_base/DWBLocalPlanner/critics/ObstacleFootprint set to the footprint above. What you want is for the footprint to be set anywhere in those namespaces, including

  • /footprint
  • /move_base/footprint
  • /move_base/DWBLocalPlanner/footprint
  • /move_base/DWBLocalPlanner/critics/footprint
  • /move_base/DWBLocalPlanner/critics/ObstacleFootprint/footprint

/move_base/footprint is traditional, since it allows anything in move_base to use the same footprint.