issue install from ROS2 package list

[knmcguire]

When I install the motion capture tracking with

sudo apt-get install ros-humble-motion-capture-tracking

Then I get the following error when running launch:

$ ros2 launch motion_capture_tracking launch.py
[INFO] [launch]: All log files can be found below /home/kimberly/.ros/log/2024-02-27-08-40-59-962626-pop-os-32712
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [motion_capture_tracking_node-1]: process started with pid [32713]
[ERROR] [motion_capture_tracking_node-1]: process has died [pid 32713, exit code 127, cmd '/opt/ros/humble/lib/motion_capture_tracking/motion_capture_tracking_node --ros-args -r __node:=motion_capture_tracking --params-file /opt/ros/humble/share/motion_capture_tracking/config/cfg.yaml'].
[INFO] [rviz2-2]: process started with pid [32715]
[motion_capture_tracking_node-1] /opt/ros/humble/lib/motion_capture_tracking/motion_capture_tracking_node: error while loading shared libraries: libNatNet.so: cannot open shared object file: No such file or directory

[knmcguire]

This was found when trying to solve this crazyswarm2 issue IMRCLab/crazyswarm2#432

[whoenig]

Oh, that's super annoying:-/ Thanks for testing it out.

As workaround one could put libNatNet in the PATH (from https://github.com/whoenig/NatNetSDKCrossplatform/tree/main/lib/ubuntu). Of course, Optitrack doesn't provide source code or a static library, so I am not sure how to fix it besides disabling the "optitrack_closed_source" backend in the binary distribution.