How to deal with the problem "[arbotix-2] process has died " in kinetic?

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Hi,friends,I have a problem when I execute a command.The command is "$ roslaunch rbx1_bringup fake_turtlebot.launch".And then,there is the problem--------[arbotix-2] process has died [pid 21637, exit code 1, cmd /home/hen/catkin_ws_indigo/src/arbotix_ros/arbotix_python/bin/arbotix_driver __name:=arbotix __log:=/home/hen/.ros/log/deed8e6e-df96-11eb-aabb-907841e8253d/arbotix-2.log]. log file: /home/hen/.ros/log/deed8e6e-df96-11eb-aabb-907841e8253d/arbotix-2*.log I hope someone can help me, thanks.