sk3p71c

I had the same issue after installing Fortress on a Ros2 "foxy" docker image. You can change the engine to ogre more permanently by modifying the config file at ~/.ignition/gazebo/6/gui.config...

I have just come across the same error two years later: "Error: [hci0]: can't init hci: can't down device: operation not permitted". Giving the utility the CAP_NET_ADMIN capability worked for...