LDS-01,[hlds_laser_publisher-1] process has died

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http://emanual.robotis.com/docs/en/pl...

I follow the instruction in the web page untill [ 24.6.4 Set Permission for LDS-01:sudo chmod a+rw /dev/ttyUSB0], system show me can't find /dev/ttyUSB0.

I try [ roslaunch hls_lfcd_lds_driver hlds_laser.launch] ,and I get the another error message blow.

my system envirnoment : virtualbox + Ubuntu16.04

process[hlds_laser_publisher-1]: started with pid [3047] process[rviz-2]: started with pid [3062]

[hlds_laser_publisher-1] process has died [pid 3047, exit code 255, cmd /opt/ros/kinetic/lib/hls_lfcd_lds_driver/hlds_laser_publisher __name:=hlds_laser_publisher __log:=/home/nick/.ros/log/9b462084-5805-11e8-b4b2-0800274b0c6d/hlds_laser_publisher-1.log].

log file: /home/nick/.ros/log/9b462084-5805-11e8-b4b2-0800274b0c6d/hlds_laser_publisher-1*.log