CMakeFiles/calibrationtoolkit.dir/CalibrationToolkit/calibrationtoolkit.cpp.o: In function nlopt::opt::get_errmsg() const': /usr/local/include/nlopt.hpp:516: undefined reference to nlopt_get_errmsg'

[lilangyi]

CMakeFiles/calibrationtoolkit.dir/CalibrationToolkit/calibrationtoolkit.cpp.o: In function nlopt::opt::get_errmsg() const': /usr/local/include/nlopt.hpp:516: undefined reference to nlopt_get_errmsg'
/usr/local/include/nlopt.hpp:516: undefined reference to nlopt_get_errmsg' /usr/local/include/nlopt.hpp:516: undefined reference to nlopt_get_errmsg'
collect2: error: ld returned 1 exit status
calibration_camera_lidar/ls_calibration/calibration_camera_lidar/CMakeFiles/calibrationtoolkit.dir/build.make:425: recipe for target '/home/lee/calibration/devel/lib/libcalibrationtoolkit.so' failed
make[2]: *** [/home/lee/calibration/devel/lib/libcalibrationtoolkit.so] Error 1
CMakeFiles/Makefile2:5447: recipe for target 'calibration_camera_lidar/ls_calibration/calibration_camera_lidar/CMakeFiles/calibrationtoolkit.dir/all' failed
make[1]: *** [calibration_camera_lidar/ls_calibration/calibration_camera_lidar/CMakeFiles/calibrationtoolkit.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2
Invoking "make -j48 -l48" failed

我已经安装了nlopt，安装位置在根目录下，报了这个错该如何解决呢？难道是因为nlopt要安装在包的目录下吗？

[XidianLemon]

sudo apt remove libnlopt-dev