error when running sample_voxel_grid.launch

[felixf4xu]

Hi,

When I run: ros2 launch pcl_ros sample_voxel_grid.launch:

I got this error

[INFO] [launch]: All log files can be found below /home/c/.ros/log/2023-08-09-15-52-28-905699-h-7890
[INFO] [launch]: Default logging verbosity is set to INFO
[ERROR] [launch]: Caught exception in launch (see debug for traceback): Caught multiple exceptions when trying to load file of format [launch]:
 - Error trying to process rule "substitution":

Unknown substitution: find
 - invalid syntax (sample_voxel_grid.launch, line 1)

[AchmadFathoni]

That file is for ros1. It never get updated for 6 years!