REQUIRED process [check_ueye_api-1] has died! [closed]

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Hi, this is my first time to use ueye camera. My camera is UI324xLe-M. I installed the driver 4.91.0001. All things are good when I tried to launch the camera by camera Manager. So I tried to launch the camera by ROS. After catkin_make the package. I entry the sudo /etc/init.d/ueyeusbdrc start to start the driver first. Then launch the roscore in a new terminal. At last I cd to catkin_ws/src/ueye_cam/launch/ and run roslaunch rgb8.launch in terminal. But error happens:

[ INFO] [1546925752.618636522]: Initializing nodelet with 4 worker threads.

[ INFO] [1546925752.640212585]: Unable to open camera calibration file [/home/gone/.ros/camera_info/camera.yaml]

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REQUIRED process [check_ueye_api-1] has died! process has died [pid 12295, exit code -6, cmd /home/gone/catkin_ws/devel/lib/ueye_cam/check_ueye_api __name:=check_ueye_api __log:=/home/gone/.ros/log/142700f0-12fe-11e9-9580-5800e34de6a7/check_ueye_api-1.log].

log file: /home/gone/.ros/log/142700f0-12fe-11e9-9580-5800e34de6a7/check_ueye_api-1*.log

Initiating shutdown!

================================================================================

[ueye_cam_nodelet-3] killing on exit

[nodelet_manager-2] killing on exit

[check_ueye_api-1] killing on exit

shutting down processing monitor...

... shutting down processing monitor complete

done

My system is ubuntu16.04. Can anybody help me?