An error occured when I run hte preprocess program

[Lan-hhxx]

Hello, I tried to reappear your algorithm, however some error occured when I run the preprocess program using your bags. the command and the result are as fellows: rosrun direct_visual_lidar_calibration preprocess ../direct_data/livox_ros1/ ../preprocessed/ -av data_path: ../direct_data/livox_ros1/ dst_path : ../preprocessed/ input_bags:

• ../direct_data/livox_ros1/rosbag2_2023_03_09-13_42_46.bag
• ../direct_data/livox_ros1/rosbag2_2023_03_09-13_44_54.bag
• ../direct_data/livox_ros1/rosbag2_2023_03_09-13_44_10.bag
• ../direct_data/livox_ros1/rosbag2_2023_03_09-13_46_10.bag
• ../direct_data/livox_ros1/rosbag2_2023_03_09-13_46_54.bag topics in ../direct_data/livox_ros1/rosbag2_2023_03_09-13_42_46.bag:
• /livox/points : sensor_msgs/PointCloud2
• /livox/imu : sensor_msgs/Imu
• /image : sensor_msgs/Image
• /camera_info : sensor_msgs/CameraInfo selected topics:
• camera_info: /camera_info
• image : /image
• points : /livox/points intensity_channel: intensity terminate called after throwing an instance of 'rosbag::BagIOException' what(): Error opening file: /image Aborted (core dumped)

I don't know how to solve it, so please help me to solve this issue, besides, I wonder confirm the version of Dependencies such as openCV. thank you!

[Seekerzero]

I think this is because you use a different version of opencv. The verified version of openCV is 4.2.0, please check if you get the build warning when you run catkin_make for the rospackage. similar to this:

warning: libopencv_core.so.408, needed by /your/path/to/the/catkin_ws/devel/lib/libdirect_visual_lidar_calibration.so, may conflict with libopencv_core.so.4.2

In this warning it says that the openCV 4.8.0 has some incompatible files to the openCV 4.2.0.