完整错误如下：
[cartographer_node-2] process has died [pid 16724, exit code -6, cmd /home/ls/catkin_ws/devel/lib/cartographer_ros/cartographer_node -configuration_directory /home/ls/catkin_ws/src/cartographer_ros/cartographer_ros/configuration_files -configuration_basename backpack_2d.lua echoes:=horizontal_laser_2d __name:=cartographer_node __log:=/home/ls/.ros/log/95edfd20-54a4-11eb-b352-3497f6542331/cartographer_node-2.log].
log file: /home/ls/.ros/log/95edfd20-54a4-11eb-b352-3497f6542331/cartographer_node-2*.log
我猜测是和backpack_2d.lua这个文件有关，有大神能帮我解答一下吗？
