TFs about wheels do not exist. so rviz can't show me about robot_description

[Navifra-Tobey]

Please provide the following information:

• OS: Ubuntu 20.04
• ROS Distro: Galactic
• Built from source or installed:

• Package version: (if from repository, give version from sudo dpkg -s ros-$ROS_VERSION-turtlebot4-PACKAGE_WITH_ISSUE, if from source, give commit hash)

  Expected behaviour When i run "ros2 launch turtlebot4_viz view_robot.launch.py", rviz2 show me the perfect TF and robot_description.

  Actual behaviour But i can't see perfect TF and robot_description. There are no frame and TF about "left_wheel", "right_wheel", "wheel_drop_left", "wheel_drop_right"

what should i do...? :(

termial shows me this error Warning: Invalid frame ID "wheel_drop_left" passed to canTransform argument source_frame - frame does not exist [rviz2-1] at line 156 in /tmp/binarydeb/ros-galactic-tf2-0.17.5/src/buffer_core.cpp

To Reproduce Provide the steps to reproduce:

1. run something
2. launch something else
3. see the error

Other notes Add anything else you thing is important.

[roni-kreinin]

Does it look like this https://github.com/iRobotEducation/create3_sim/issues/125?

[Navifra-Tobey]

appearing errors are same with mine but it seems like wheels exist.

in my situation, TF of wheels and wheel_drops are not exist from the beginning. and when i run "tf2_tools view_frames.py" too

should i edit URDF?

[roni-kreinin]

You shouldn't need to make any changes to the URDF. Is this coming from a robot or simulation?

[Navifra-Tobey]

I didn't set about DDS. The reason why rviz can't show tf about wheels.

but i still have some problems. maybe i can fix as refer to your comment. thank you ;)