Demo : "Sign Following Robot with ROS in MATLAB" connection failed between Simulink and Gazebo in VirtualBox

Hello everyone,

I am trying to use the demo "Sign following robot with ROS in Matlab", but when I configure the network mode as "bridge", I cannot open the " Gazebo Sign Follower ROS"," ROS Bridge (Dashing) "icon in the virtualBox. Everytime, when I click these icons, they will close the terminal immediately ..

But when I configure the network mode as "NAT", I can run the above two icons in the virtuabox. However, the connection from MAC (host) to VirtualBox is failed ...

In my eyes, I think the network mode should choose "bridge", but problem is why those Gazebo icons cannot run under such network mode?

I would be very appreciated your suggestions on how to solve this problem

Thank you very much

Best regards