I want to run
roslaunch rplidar_ros view_rplidar.launch
it gives the output:
process[rplidarNode-1]: started with pid 
[ 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
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