ros系统下打开摄像头
先sudo apt-get install ros-melodic-usb-cam
roslaunch usb_cam usb_cam-test.launch
一直报错ERROR: cannot launch node of type [usb_cam/usb_cam_node]: Cannot locate node of type [usb_cam_node] in package [usb_cam]. Make sure file exists in package path and permission is set to executable (chmod +x)
虚拟机也连接了摄像头
