lib_exR_lidar2imu_node: error while loading shared libraries: libndt_omp.so

[Rotoslider]

I have a Jetson AGX that I am trying to get this working on. Its arm64 architecture
I managed to get ndt_omp installed by fixing the cmake
I then used the same process to install lidar_imu_calib. It built without errors
I edited the launch file to read my topics of lidar and imu
When I run your launch file I get:

SUMMARY
========

PARAMETERS
 * /calib_exR_lidar2imu_node/bag_file: /home/lbackpack/c...
 * /calib_exR_lidar2imu_node/imu_topic: /imu/data
 * /calib_exR_lidar2imu_node/lidar_topic: /velodyne_points
 * /rosdistro: melodic
 * /rosversion: 1.14.10

NODES
  /
    calib_exR_lidar2imu_node (lidar_imu_calib/calib_exR_lidar2imu_node)

ROS_MASTER_URI=http://localhost:11311

process[calib_exR_lidar2imu_node-1]: started with pid [13307]
/home/lbackpack/catkin_ws/src/lidar_imu_calib/build/devel/lib/lidar_imu_calib/calib_exR_lidar2imu_node: error while loading shared libraries: libndt_omp.so: cannot open shared object file: No such file or directory
[calib_exR_lidar2imu_node-1] process has died [pid 13307, exit code 127, cmd /home/lbackpack/catkin_ws/src/lidar_imu_calib/build/devel/lib/lidar_imu_calib/calib_exR_lidar2imu_node __name:=calib_exR_lidar2imu_node __log:=/home/lbackpack/.ros/log/96d22832-6c0b-11eb-8543-48b02d2ff3be/calib_exR_lidar2imu_node-1.log].
log file: /home/lbackpack/.ros/log/96d22832-6c0b-11eb-8543-48b02d2ff3be/calib_exR_lidar2imu_node-1*.log
all processes on machine have died, roslaunch will exit

any suggestion on getting this working?
thanks in advance

[Rotoslider]

The missing file is at: /proc/9104/cwd/src/ndt_omp/build/devel/lib
and a shortcut of it is located at: usr/local/lib

[Rotoslider]

I have now built this on a amd64 system and I get the same error of the same missing file. Both the arm and amd systems are running Ubuntu 18.04.
I could really use some help here. MY project is stuck at this point now for a few days.

thanks in advance

[Rotoslider]

I fixed the missing library file by running:
sudo /sbin/ldconfig -v

In your instructions you do not state to stop the recording of the bag file before moving to the next step. How long should the recording last before you stop it?

[Rotoslider]

@chennuo0125-HIT Should the IMU be stationary or moving when recording the bag file for best results.

[Alex-Beh]

@chennuo0125-HIT Should the IMU be stationary or moving when recording the bag file for best results.

@Rotoslider Have you get any answers for this question? Do you mind to share your experience for the calibration process?