Uanble to move turtlebot 3 using teleop

Question

I am unable to move my turtlebot3 using teleop and keyboard. I am able to change the linear and angular velocity but the bot is not moving.

This is what my rqt graph looks like. I think the reason is that gazebo gui is not subscribed to cmd_vel. How do i make gazebo_gui subscribe to cmd_vel ?

Answer 1

I was able to solve it by running this

sudo apt-get install ros-noetic-gazebo-ros-pkgs ros-noetic-gazebo-ros-control

This makes gazebo subscribe to cmd_vel. Rqt graph now looks like this