an error was thrown

[otake0703]

I am trying to synchronize the YLM-X001 with the D435. I am going to record a bag file and run it.

Running:
ros2 run direct_visual_lidar_calibration preprocess livox livox_preprocessed -av

results in the following output:
[INFO] [1720763758.384444796] [rosbag2_storage]: Opened database 'bag2/rosbag2_2024_07_10-19_27_53/rosbag2_2024_07_10-19_27_53_0.db3' for READ_ONLY.
error: failed to determine point intensity channel automatically
: you must specify the intensity channel to be used manually
The error message is "The intensity channel must be used manually".

Does anyone understand this?

The environment is Ubuntu 22.04 and ROS 2 Humble.