Error, cannot bind to the specified serial port /dev/ttyUSB0

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1

hi
I want to run
roslaunch rplidar_ros view_rplidar.launch
it gives the output:
process[rplidarNode-1]: started with pid [13814]
[ INFO] [1606164895.583941919]: RPLIDAR running on ROS package rplidar_ros. SDK Version:1.12.0
but, it gives error Error, cannot bind to the specified serial port /dev/ttyUSB0

I am testing this command only, but in fact I have a launch file for path plannng for ROSbot2, and rplidar error preventing me from testing other parts of this file.
I am googling for 2 days, and trying many solutions, but no hope.

ttyusb0 not exist when ls -l /dev/
so, I created it using:
#mknod /dev/ttyUSB0 c 188 0
and then
sudo chmod 666 /dev/ttyUSB0
but, the same problem, cannot bind to port

I am not using real physical rplidar but I want only to run rviz

2

Hi Eman,

Pkg rplidar_ros was created specifically for physical RpLidar, so it will not work this way. If you want to simulate LIDAR and show it in Rviz you can simply run some simulation or create your own one using this plug in.

Best regards,
Hubert