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I’m working on the guide and came across this error, I don’t understand what this is connected with and how to fix it roswtf: WARNING The following node subscriptions are unconnected:

  • /rviz:
  • /map_updates
  • /move_base:
  • /move_base/cancel

Found 1 error(s).

ERROR The following nodes should be connected but aren't:

  • /move_base->/move_base (/move_base/local_costmap/footprint)
  • /move_base->/move_base (/move_base/global_costmap/footprint)

all the code is like here: https://amperka.ru/blogs/projects/abot-robot-part-2#ros-navigation chapter about “стек навигации Ros»

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  • $\begingroup$ Welcome to Robotics Rich, but I'm afraid that it is not clear what you are asking. We prefer practical, answerable questions, so it's a good idea to include details of what you want to achieve, what you tried, what you saw & what you expected to see. Please take a look at How to Ask & tour for more information on how stack exchange works and work through the Robotics question checklist to edit your question to make it clearer. $\endgroup$
    – Tully ♦
    Commented Apr 13 at 7:02

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