catkin_make Error | ROS Melodic OpenCV 3.4.0 about leg_tracker

[angusleigh]

detect_leg_clusters.cpp:(.text._ZN17DetectLegClusters13laserCallbackERKN5boost10shared_ptrIKN11sensor_msgs10LaserScan_ISaIvEEEEE[_ZN17DetectLegClusters13laserCallbackERKN5boost10shared_ptrIKN11sensor_msgs10LaserScan_ISaIvEEEEE]+0x6bc): undefined reference to `cv::ml::RTrees::getVotes(cv::_InputArray const&, cv::_OutputArray const&, int) const'

The error is coming from this line: https://github.com/angusleigh/leg_tracker/blob/melodic/src/detect_leg_clusters.cpp#L216

I'm wondering if your OpenCV is properly installed and the version 3.4 is actually be called for compilation?

Can you try using this formula instead? https://github.com/angusleigh/leg_tracker/blob/melodic/src/detect_leg_clusters.cpp#L212 and deleting these lines https://github.com/angusleigh/leg_tracker/blob/melodic/src/detect_leg_clusters.cpp#L210-L220.

[jnisa]

It worked :) Thanks!

[hoppss]

cmakelists didnot include and link OpenCV for this project.