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ydlidar X2 health code: ffffffff

Hi there,

Maybe someone had the same problem or can could help me.

  • Ubuntu Image : https://downloads.ubiquityrobotics.com/ (Virtual Machine)

  • Manual : www.ydlidar.com/download/32

After i added the workstation into my VirtualBox Manager i followed the manual,

$ mkdir -p ~/catkin_ws/src

$ cd ~/catkin_ws/src

$ catkin_init_workspace

$ cd ~/catkin_ws && catkin_make

$ echo "source ~/catkin_ws/devel/setup.bash" >> ~/.bashrc

$ source ~/.bashrc

$ git clone https://github.com/YDLIDAR/ydlidar_ros

$ cd ydlidar_ros

$ git checkout X2

$ cd ..

$ catkin_make

$ roscd ydlidar/startup

$ sudo chmod 0777 *

$ sudo sh initenv.sh

Everything was working fine until i wanted to start scanning

$ roslaunch ydlidar lidar_view.launch

the lidar_view windows opens with no visible scanning-output and in the terminal i get following Error "Error: Error, cannot retrieve Yd Lidar health code: ffffffff"

Here is a picture of my terminal, maybe this helps someone https://imgur.com/1fEd1IQ

Could someone guide me? Or tell me what i could do?