[laserMapping-2] process has died

[Cureser]

Linux version:Ubuntu20.04
Opencv4.10.0

commond:roslaunch fast_livo mapping_avia_old.launch

I don't want to install opencv3, how can i fix this problem?

[Cureser]

Here are my gdb information

[xuankuzcr]

The error you encountered looks quite strange, as the function cv::initUndistortRectifyMap is not actually used in the code, and OpenCV 3 is not required; OpenCV 4 can be used instead. With the limited information available, I can't determine the exact issue.

[Cureser]

This funcion appears when constructing the PinholeCamera object.

It seem that it can be found on line 1196 in the file laserMapping.cpp

[xuankuzcr]

You can directly comment out this part.

[Cureser]

Thanks!

I've commented out that part, but another process died come up.

[xuankuzcr]

Could you pull the latest code? If it's already up-to-date, could you provide some GDB information?

[Cureser]

I‘ve commented out this part.

Here are the gdb information.
It seems that the process died during initialization.

[Cureser]

Thanks, I successfully ran the test program by linking opencv4.2.0, but the first problem still exists, I only commented out the cv::initUndistortRectifyMap function so that the program would not crash.

[haoming-Yu]

Yes, I've encountered the same problem several times. Strange as it is, using opencv >= 4.0 would probably trigger this problem. I think it might have something to do with rpg_vikit's compilation and problematic dependency. Just comment out the line and then catkin_make the project again will make the program runnable and git rid of this error.
If you would like to debug this problem, just add launch-prefix="xterm -e gdb -ex run --args" to launch file's node definition, and you can find the problem of initUndistortRectifyMap function. Anyway, thanks for author's contribution and the solution for this problem. It really saved me a lot of time! :)