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2016-11-17 14:34:31 -0500 received badge  Famous Question (source)
2016-11-17 14:15:37 -0500 answered a question undefined reference to nlopt

oh, let me end my problem.(get help from labmate) int the cmakelists.txt , focus on the last line. the project_namemeans my findnlopt.cmake works no results. you can change it with ${NLOPT_LIBRARIES} now, it works well. or in the terminal: 5.catkin_make clean and. rm -Rf devel/ build/

which also works. it's just a demo to show the related problems. thanks upfloor guy.

 ## Declare a cpp library
    add_library(${PROJECT_NAME} 
    src/dubins_z_state_space.cpp 
    src/curvature_bvp_solver.cpp 
    src/clothoid_state_space.cpp 
    src/dubins_feasible_path_generator.cpp 
    src/clothoid_z_state_space.cpp
    src/glideslope_bvp_solver.cpp)
    target_link_libraries(${PROJECT_NAME} ${catkin_LIBRARIES} ${NLOPT_LIBRARIES})

    ## Declare a cpp executable
    add_executable(${PROJECT_NAME}_example_dubins_z_path examples/example_dubins_z_path.cpp)
    target_link_libraries(${PROJECT_NAME}_example_dubins_z_path ${PROJECT_NAME} ${catkin_LIBRARIES})
2016-11-17 08:38:49 -0500 commented answer undefined reference to nlopt

i found a findnlopt.cmake file, but do not know how to use it. maybe i should to contact to the project writer.

2016-11-15 10:52:28 -0500 received badge  Notable Question (source)
2016-11-15 08:28:38 -0500 commented answer undefined reference to nlopt

thank you very much, i update the CMakeLists.txt.

2016-11-15 01:10:42 -0500 received badge  Popular Question (source)
2016-11-14 11:11:56 -0500 commented question undefined reference to nlopt

ok, i'm sorry, first time to make a question.

2016-11-14 11:03:53 -0500 received badge  Editor (source)
2016-11-14 10:52:17 -0500 commented question Undefined reference to nlopt

sorry, i just learn ros.

2016-11-14 10:52:17 -0500 asked a question undefined reference to nlopt

I use sudo apt-get install libnlopt-dev to install nlopt lib. when i catkin_make in my pc, report says like bellow, like can't link the lib. i donot know how to fix the problem.

this is the report.

alex@ubuntu:~/planner_examples_ws$ catkin_make
Base path: /home/alex/planner_examples_ws
Source space: /home/alex/planner_examples_ws/src
Build space: /home/alex/planner_examples_ws/build
Devel space: /home/alex/planner_examples_ws/devel
Install space: /home/alex/planner_examples_ws/install
####
#### Running command: "make cmake_check_build_system" in "/home/alex/planner_examples_ws/build"
####
####
#### Running command: "make -j4 -l4" in "/home/alex/planner_examples_ws/build"
####
[  0%] [  0%] Built target geometry_msgs_generate_messages_cpp
Built target std_msgs_generate_messages_cpp
[  0%] Built target std_msgs_generate_messages_lisp
[  0%] Built target geometry_msgs_generate_messages_lisp
[  0%] [  0%] Built target _gridmapping_msgs_generate_messages_check_deps_GridObstacleUpdate
Built target _gridmapping_msgs_generate_messages_check_deps_GridPoint
[  0%] Built target std_msgs_generate_messages_py
[  0%] Built target geometry_msgs_generate_messages_py
[  1%] Built target circular_curve_lib
[  4%] Built target alglib
[  4%] Built target gdal_utils
[  6%] Built target math_utils
[  6%] Built target boostrand1
[  6%] Built target random_points1
[  7%] Built target stupidrand1
[  7%] Built target rosparam_util_getvector
[  7%] Built target std_msgs_util
[ 12%] Built target sbpl
[ 12%] Built target nav_msgs_generate_messages_lisp
[ 12%] Built target _tictoc_profiler_generate_messages_check_deps_ProfilerEntry
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_PathXYZVPsi
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_PathXYZ
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_XYZVPsi
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_XYZVViewPoint
[ 39%] Built target ompl
[ 39%] Built target _ca_nav_msgs_generate_messages_check_deps_PathXYZVViewPoint
[ 39%] Built target nav_msgs_generate_messages_cpp
[ 39%] Built target nav_msgs_generate_messages_py
[ 39%] Built target _ca_nav_msgs_generate_messages_check_deps_LookAheadTime
[ 44%] Built target mesh_loader_3ds
[ 44%] Built target _ca_nav_msgs_generate_messages_check_deps_WorkspaceTrajectory
[ 44%] Built target pcl_util_examples
[ 45%] Built target pcl_util_pc2_iterator_examples
[ 45%] Built target pcl_util_rgb
[ 45%] Built target scrollgrid_examples
[ 45%] Built target tf_utils
[ 45%] Built target _shapes_generate_messages_check_deps_PolygonDepth
[ 45%] Built target _shapes_generate_messages_check_deps_Point2D
[ 45%] Built target _speed_profile_generate_messages_check_deps_SpeedProfile
[ 45%] Built target _shapes_generate_messages_check_deps_PolygonWithHolesDepth
[ 45%] Built target gridmapping_msgs_generate_messages_cpp
[ 46%] Built target gridmapping_msgs_generate_messages_lisp
[ 47%] Built target gridmapping_msgs_generate_messages_py
[ 48%] Built target alglib_minqp_d_bc1
[ 48%] [ 48%] Built target alglib_example_df
Built target circular_curve_lib_example_dubins_path_set
[ 51%] [ 51%] Built target gdal_utils_example_dem
Built target circular_curve_lib_example_trochoid
[ 51%] Built target ompl_GeometricCarPlanning
[ 51%] Built target math_utils_scratch
[ 52%] Built target ompl_HybridSystemPlanning
[ 52%] [ 52%] Built target ompl_HypercubeBenchmark
Built target ompl_KinematicChainBenchmark
[ 52%] Built target ompl_OptimalPlanning
[ 53%] Built target ompl_PlannerData
[ 53%] [ 53%] Built target ompl_PlannerProgressProperties
[ 53%] Built target ompl_RigidBodyPlanning
Built target ompl_Point2DPlanning
[ 54%] [ 54%] Built target ompl_RigidBodyPlanningWithControls
[ 54%] Built target ompl_RigidBodyPlanningWithIK
Built target ompl_RigidBodyPlanningWithIntegrationAndControls
[ 54%] Built target ompl_RigidBodyPlanningWithODESolverAndControls
[ 55%] [ 55%] [ 55%] Built target ompl_StateSampling
Built target test_adjacency_list
Built target ompl_state_example
[ 55%] Built target test_sbpl
[ 55%] Built target tictoc_profiler_generate_messages_cpp
[ 55%] [ 55%] [ 56%] Built target tictoc_profiler_generate_messages_py
Built target std_msgs_util_load_pose
Built target tictoc_profiler_generate_messages_lisp
[ 58%] [ 60%] Built target ca_nav_msgs_generate_messages_lisp
Built target ca_nav_msgs_generate_messages_cpp
[ 62%] Built target ca_nav_msgs_generate_messages_py
[ 63%] Built target mesh_loader_3ds_example
[ 64%] Built target shapes_generate_messages_cpp
[ 65%] Built target shapes_generate_messages_py
[ 66%] Built target shapes_generate_messages_lisp
[ 67%] Built target tf_utils_transform_vector
[ 67%] Built target speed_profile_generate_messages_cpp
[ 67%] [ 68%] Built target speed_profile_generate_messages_lisp
Built target speed_profile_generate_messages_py
[ 68%] Built target gridmapping_msgs_generate_messages
[ 68%] Built target tictoc_profiler
[ 68%] [ 68%] Built target tictoc_profiler_generate_messages
Built target ca_nav_msgs_generate_messages
[ 68%] Built target shapes_generate_messages
[ 68%] [ 68%] Built target speed_profile_generate_messages
Built target tictoc_profiler_example
[ 68%] Built target ca_nav_msgs_trajectory_converter
[ 68%] Built target ca_nav_msgs_trajectory_converter_example
[ 68%] Built target distancemap2
[ 72%] Built target shapes
[ 73%] Built target distancemap2_3d_obst_test
[ 73%] Built target shapes_cgal_complement
[ 73%] Built target distancemap2_subscribe_to_grid
[ 73%] Built target shapes_bbox_shape_example
[ 74%] Built target shapes_cgal_connect_holes
[ 74%] Built target shapes_cgal_difference
[ 74%] Built target shapes_cgal_multiple_holes
[ 74%] Built target shapes_cgal_nested_triangulation
[ 74%] [ 75%] Built target shapes_cgal_polygon_join_intersect
Built target shapes_cgal_polygon_intersection
[ 75%] Built ...
(more)
2016-11-14 10:52:16 -0500 asked a question Undefined reference to nlopt

I use sudo apt-get install libnlopt-dev to install nlopt lib. when i catkin_make in my pc, report says like bellow, like can't link the lib. i donot know how to fix the problem.

alex@ubuntu:~/planner_examples_ws$ catkin_make
Base path: /home/alex/planner_examples_ws
Source space: /home/alex/planner_examples_ws/src
Build space: /home/alex/planner_examples_ws/build
Devel space: /home/alex/planner_examples_ws/devel
Install space: /home/alex/planner_examples_ws/install
####
#### Running command: "make cmake_check_build_system" in "/home/alex/planner_examples_ws/build"
####
####
#### Running command: "make -j4 -l4" in "/home/alex/planner_examples_ws/build"
####
[  0%] [  0%] Built target geometry_msgs_generate_messages_cpp
Built target std_msgs_generate_messages_cpp
[  0%] Built target std_msgs_generate_messages_lisp
[  0%] Built target geometry_msgs_generate_messages_lisp
[  0%] [  0%] Built target _gridmapping_msgs_generate_messages_check_deps_GridObstacleUpdate
Built target _gridmapping_msgs_generate_messages_check_deps_GridPoint
[  0%] Built target std_msgs_generate_messages_py
[  0%] Built target geometry_msgs_generate_messages_py
[  1%] Built target circular_curve_lib
[  4%] Built target alglib
[  4%] Built target gdal_utils
[  6%] Built target math_utils
[  6%] Built target boostrand1
[  6%] Built target random_points1
[  7%] Built target stupidrand1
[  7%] Built target rosparam_util_getvector
[  7%] Built target std_msgs_util
[ 12%] Built target sbpl
[ 12%] Built target nav_msgs_generate_messages_lisp
[ 12%] Built target _tictoc_profiler_generate_messages_check_deps_ProfilerEntry
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_PathXYZVPsi
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_PathXYZ
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_XYZVPsi
[ 12%] Built target _ca_nav_msgs_generate_messages_check_deps_XYZVViewPoint
[ 39%] Built target ompl
[ 39%] Built target _ca_nav_msgs_generate_messages_check_deps_PathXYZVViewPoint
[ 39%] Built target nav_msgs_generate_messages_cpp
[ 39%] Built target nav_msgs_generate_messages_py
[ 39%] Built target _ca_nav_msgs_generate_messages_check_deps_LookAheadTime
[ 44%] Built target mesh_loader_3ds
[ 44%] Built target _ca_nav_msgs_generate_messages_check_deps_WorkspaceTrajectory
[ 44%] Built target pcl_util_examples
[ 45%] Built target pcl_util_pc2_iterator_examples
[ 45%] Built target pcl_util_rgb
[ 45%] Built target scrollgrid_examples
[ 45%] Built target tf_utils
[ 45%] Built target _shapes_generate_messages_check_deps_PolygonDepth
[ 45%] Built target _shapes_generate_messages_check_deps_Point2D
[ 45%] Built target _speed_profile_generate_messages_check_deps_SpeedProfile
[ 45%] Built target _shapes_generate_messages_check_deps_PolygonWithHolesDepth
[ 45%] Built target gridmapping_msgs_generate_messages_cpp
[ 46%] Built target gridmapping_msgs_generate_messages_lisp
[ 47%] Built target gridmapping_msgs_generate_messages_py
[ 48%] Built target alglib_minqp_d_bc1
[ 48%] [ 48%] Built target alglib_example_df
Built target circular_curve_lib_example_dubins_path_set
[ 51%] [ 51%] Built target gdal_utils_example_dem
Built target circular_curve_lib_example_trochoid
[ 51%] Built target ompl_GeometricCarPlanning
[ 51%] Built target math_utils_scratch
[ 52%] Built target ompl_HybridSystemPlanning
[ 52%] [ 52%] Built target ompl_HypercubeBenchmark
Built target ompl_KinematicChainBenchmark
[ 52%] Built target ompl_OptimalPlanning
[ 53%] Built target ompl_PlannerData
[ 53%] [ 53%] Built target ompl_PlannerProgressProperties
[ 53%] Built target ompl_RigidBodyPlanning
Built target ompl_Point2DPlanning
[ 54%] [ 54%] Built target ompl_RigidBodyPlanningWithControls
[ 54%] Built target ompl_RigidBodyPlanningWithIK
Built target ompl_RigidBodyPlanningWithIntegrationAndControls
[ 54%] Built target ompl_RigidBodyPlanningWithODESolverAndControls
[ 55%] [ 55%] [ 55%] Built target ompl_StateSampling
Built target test_adjacency_list
Built target ompl_state_example
[ 55%] Built target test_sbpl
[ 55%] Built target tictoc_profiler_generate_messages_cpp
[ 55%] [ 55%] [ 56%] Built target tictoc_profiler_generate_messages_py
Built target std_msgs_util_load_pose
Built target tictoc_profiler_generate_messages_lisp
[ 58%] [ 60%] Built target ca_nav_msgs_generate_messages_lisp
Built target ca_nav_msgs_generate_messages_cpp
[ 62%] Built target ca_nav_msgs_generate_messages_py
[ 63%] Built target mesh_loader_3ds_example
[ 64%] Built target shapes_generate_messages_cpp
[ 65%] Built target shapes_generate_messages_py
[ 66%] Built target shapes_generate_messages_lisp
[ 67%] Built target tf_utils_transform_vector
[ 67%] Built target speed_profile_generate_messages_cpp
[ 67%] [ 68%] Built target speed_profile_generate_messages_lisp
Built target speed_profile_generate_messages_py
[ 68%] Built target gridmapping_msgs_generate_messages
[ 68%] Built target tictoc_profiler
[ 68%] [ 68%] Built target tictoc_profiler_generate_messages
Built target ca_nav_msgs_generate_messages
[ 68%] Built target shapes_generate_messages
[ 68%] [ 68%] Built target speed_profile_generate_messages
Built target tictoc_profiler_example
[ 68%] Built target ca_nav_msgs_trajectory_converter
[ 68%] Built target ca_nav_msgs_trajectory_converter_example
[ 68%] Built target distancemap2
[ 72%] Built target shapes
[ 73%] Built target distancemap2_3d_obst_test
[ 73%] Built target shapes_cgal_complement
[ 73%] Built target distancemap2_subscribe_to_grid
[ 73%] Built target shapes_bbox_shape_example
[ 74%] Built target shapes_cgal_connect_holes
[ 74%] Built target shapes_cgal_difference
[ 74%] Built target shapes_cgal_multiple_holes
[ 74%] Built target shapes_cgal_nested_triangulation
[ 74%] [ 75%] Built target shapes_cgal_polygon_join_intersect
Built target shapes_cgal_polygon_intersection
[ 75%] Built target shapes_draw_shape
[ 75%] Built ...
(more)