ego_planner编译错误：/usr/local/lib/libopencv_core.so.3.4: 无法添加符号: DSO missing from command line

在XTDrone平台中，对ego_planner编译(catkin build)时出现错误:

Errors     << ego_planner:make /home/nanorobot/catkin_ws/logs/ego_planner/build.make.019.log                                            
/usr/bin/ld: CMakeFiles/ego_planner_node.dir/src/planner_manager.cpp.o: undefined reference to symbol '_ZN2cv3MatC1Ev'
//usr/local/lib/libopencv_core.so.3.4: 无法添加符号: DSO missing from command line
collect2: error: ld returned 1 exit status
make[2]: *** [/home/nanorobot/catkin_ws/devel/.private/ego_planner/lib/ego_planner/ego_planner_node] Error 1
make[1]: *** [CMakeFiles/ego_planner_node.dir/all] Error 2
make[1]: *** 正在等待未完成的任务....
make: *** [all] Error 2

对应CMakeLists文件内容为：

cmake_minimum_required(VERSION 2.8.3)
project(plan_env)

set(CMAKE_BUILD_TYPE "Release")
ADD_COMPILE_OPTIONS(-std=c++11 )
ADD_COMPILE_OPTIONS(-std=c++14 )
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -Wall -g")

find_package(OpenCV REQUIRED)

find_package(catkin REQUIRED COMPONENTS
  roscpp
  rospy
  std_msgs
  visualization_msgs
  cv_bridge
  message_filters
)

find_package(Eigen3 REQUIRED)
find_package(PCL 1.7 REQUIRED)

catkin_package(
 INCLUDE_DIRS include
 LIBRARIES plan_env
 CATKIN_DEPENDS roscpp std_msgs
#  DEPENDS system_lib
)

include_directories( 
    SYSTEM 
    include 
    ${catkin_INCLUDE_DIRS}
    ${Eigen3_INCLUDE_DIRS} 
    ${PCL_INCLUDE_DIRS}
    ${OpenCV_INCLUDE_DIRS}
)

link_directories(${PCL_LIBRARY_DIRS})

add_library( plan_env 
    src/grid_map.cpp 
    src/raycast.cpp
    src/obj_predictor.cpp 
    )
target_link_libraries( plan_env
    ${catkin_LIBRARIES} 
    ${PCL_LIBRARIES}
    ${OpenCV_LIBS}  ####自加
    )  

add_executable(obj_generator
    src/obj_generator.cpp 
)
target_link_libraries(obj_generator 
    ${catkin_LIBRARIES}
    )

make VERBOSE=1看看编译的参数，所需要的依赖库是否都连接上了