RViz Test works, but Gazebo Test doesn't: tf not published

[pmdSchmidt]

Hi,
i have the issue that the Rviz Test runs as expected, but the Gazebo test doesn't. When i run the gazebo.launch.py there are errors for all links to the odom in Rviz (no transform from [link] to [odom].

I googled this error message and found that this seems to be an issue with tf data not being published.

And indeed, when i run the bringup.launch.py (Rviz Test) data is published, but not when i run the gazebo.launch.py.

How can i fix this?

Thank you! :)

[pmdSchmidt]

It works, if you add the argument joint_hardware_connected:=false when calling gazebo.launch.py