cannot launch node of type [sfast_lio/fastlio_mapping]

[Swordros88]

(slam_env) root@P3551-KUANZHANG:~/catkin_ws# source /catkin_ws/devel/setup.bash
(slam_env) root@P3551-KUANZHANG:/catkin_ws# roslaunch sfast_lio mapping_avia.launch
... logging to /root/.ros/log/88aab05c-5da9-11ee-a076-00155d1f1638/roslaunch-P3551-KUANZHANG-24868.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://P3551-KUANZHANG:46727/

SUMMARY

PARAMETERS

• /common/imu_topic: /livox/imu
• /common/lid_topic: /livox/lidar
• /common/time_offset_lidar_to_imu: 0.0
• /common/time_sync_en: False
• /cube_side_length: 1000.0
• /feature_extract_enable: False
• /filter_size_map: 0.5
• /filter_size_surf: 0.5
• /mapping/acc_cov: 0.1
• /mapping/b_acc_cov: 0.0001
• /mapping/b_gyr_cov: 0.0001
• /mapping/det_range: 450.0
• /mapping/extrinsic_R: [1, 0, 0, 0, 1, 0...
• /mapping/extrinsic_T: [0.04165, 0.02326...
• /mapping/extrinsic_est_en: False
• /mapping/fov_degree: 90
• /mapping/gyr_cov: 0.1
• /max_iteration: 3
• /pcd_save/interval: 100
• /pcd_save/pcd_save_en: False
• /point_filter_num: 2
• /preprocess/blind: 4
• /preprocess/lidar_type: 1
• /preprocess/scan_line: 6
• /publish/dense_publish_en: True
• /publish/path_en: True
• /publish/scan_bodyframe_pub_en: False
• /publish/scan_publish_en: True
• /rosdistro: noetic
• /rosversion: 1.16.0

NODES
/
laserMapping (sfast_lio/fastlio_mapping)
rviz (rviz/rviz)

ROS_MASTER_URI=http://localhost:11311

ERROR: cannot launch node of type [sfast_lio/fastlio_mapping]: Cannot locate node of type [fastlio_mapping] in package [sfast_lio]. Make sure file exists in package path and permission is set to executable (chmod +x)
process[rviz-2]: started with pid [24893]
qt.qpa.xcb: could not connect to display 127.0.0.1:0
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

[rviz-2] process has died [pid 24893, exit code -6, cmd nice /opt/ros/noetic/lib/rviz/rviz -d /root/catkin_ws/src/S-FAST_LIO/rviz_cfg/loam_livox.rviz __name:=rviz __log:=/root/.ros/log/88aab05c-5da9-11ee-a076-00155d1f1638/rviz-2.log].
log file: /root/.ros/log/88aab05c-5da9-11ee-a076-00155d1f1638/rviz-2*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
... shutting down processing monitor complete
done