After I run:
roslaunch tiago_opencv_tutorial keypoint_tutorial.launch
The error Tips:
... logging to /home/dell/.ros/log/44ec5218-d183-11ea-b335-54353005d2aa/roslaunch-skdr-5443.log Checking log directory for disk usage. This may take a while. Press Ctrl-C to interrupt Done checking log file disk usage. Usage is <1GB.
started roslaunch server http://skdr:44807/
SUMMARY
PARAMETERS * /rosdistro: melodic * /rosversion: 1.14.6
NODES / gui (tiago_opencv_tutorial/gui_find_keypoints.py) vision_code (tiago_opencv_tutorial/find_keypoints)
ROS_MASTER_URI=http://localhost:11311
process[gui-1]: started with pid [5474] process[vision_code-2]: started with pid [5475] terminate called after throwing an instance of 'std::runtime_error' what(): Unsupported type of detector SURF [vision_code-2] process has died [pid 5475, exit code -6, cmd /home/dell/tiago_dual_public_ws/devel/lib/tiago_opencv_tutorial/find_keypoints __name:=vision_code __log:=/home/dell/.ros/log/44ec5218-d183-11ea-b335-54353005d2aa/vision_code-2.log]. log file: /home/dell/.ros/log/44ec5218-d183-11ea-b335-54353005d2aa/vision_code-2*.log ^C[gui-1] killing on exit shutting down processing monitor... ... shutting down processing monitor complete done
Here is my launch File:
<launch> <node name="gui" pkg="tiago_opencv_tutorial" type="gui_find_keypoints.py"/> <node name="vision_code" pkg="tiago_opencv_tutorial" type="find_keypoints" output="screen"/> </launch>
