Screenshot of the error
There is no topic as described in the screenshot of RVIZ. The topic
/unicycle_bot_robot_description does work, but only after you enable the
robot_state_publisher_node. In the first part to see the model you need to go to
/home/simulations/ros2_sims_ws/src/unicicle_robot/unicycle_robot_pkg/urdf/unicycle.urdf. The topic
/robot_description doesn’t work.
Note: there is a lot of inconsistency with the name of the robot. The Topics available call it
unicicle_robot, but the file is
unicycle robot. The RVIZ2 screenshots claim the TF frames are
unicicle, but the actual TF frames are
unicycle. They should all be
unicycle. In the instructions even says
uniclicle_base_link, which is wrong in yet another way.
Small issue: “it’s” should be “its”, unless it is a contraction of the words “it + is”.