Adding naoqi_bridge_msgs as Custom Messages in Robotics System Toolbox

I am trying to add naoqi_bridge_msgs downloaded from https://github.com/ros-naoqi/naoqi_bridge_msgs. However as I go through all the steps specified here: https://www.mathworks.com/help/robotics/ug/ros-custom-message-support.html

Everything completes smoothly. I am unable to see the new messages in rosmsg list. Also, in the matlabgen folder, I dont see any .m files created.