Hello,

I am trying to install ROS on Ubuntu 23.04 taht runs on a VM (I know 23.04 is not supported by ROS, but I had to). So I installed ROS with the command below:

sudo apt install ros-desktop

rosversion -d

Debian

Also I realized that the /opt directory is empty. I've tested rostopic /chatter and it seems to work. The roscore command works, but when I run rosrun rviz rviz I get an exception.

same error prints over and over again