I am facing trouble with simulation

I attempted installing base ubuntu and then installing the Magni repositories manually as well as ROS, and I am still facing the same issue with the robot model not appearing on rviz, the following image should add context. Please advise

So… the robot does appear in Gazebo and drives there, just doesn’t appear in Rviz or is there more to it?

All the info you provided in your other thread isn’t very helpful with diagnosing the problem, so it would be helpful if you could define what exactly you have here. Otherwise it’s likely to be another round of crickets.

As in, which Ubuntu is this, is it a VM, which version of ROS did you install, what launch file did you run, etc. The image you’re showing is the most generic not working rviz ever and gives us nothing at all.