No executable inside devel/lib/<package>

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Hi everyone, I am having a little problem building a node. After I created and built the package, I sourced the setup.bash file. Then I added "src/camera.cpp" to the package. The CMakeList is:

cmake_minimum_required(VERSION 2.8.3)
project(chapter5_tutorials)

find_package(catkin REQUIRED
    COMPONENTS
      roscpp
      message_generation
      sensor_msgs
      dynamic_reconfigure
      driver_base
      cv_bridge
      image_transport
      camera_info_manager
      tf)

find_package(OpenCV REQUIRED)

generate_dynamic_reconfigure_options(
    cfg/Camera.cfg
    cfg/CameraStereo.cfg
    cfg/Homography.cfg)

catkin_package(
    CATKIN_DEPENDS
      roscpp
      message_runtime
      sensor_msgs
      dynamic_reconfigure
      driver_base
      cv_bridge
      image_transport
      camera_info_manager
      tf)

include_directories(${catkin_INCLUDE_DIRS} ${OpenCV_INCLUDE_DIRS})

add_executable(camera src/camera.cpp)
add_dependencies(camera ${PROJECT_NAME}_gencfg)
target_link_libraries(camera ${catkin_LIBRARIES})

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

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

add_executable(camera_stereo src/camera_stereo.cpp)
add_dependencies(camera_stereo ${PROJECT_NAME}_gencfg)
target_link_libraries(camera_stereo ${catkin_LIBRARIES})

add_executable(homography src/homography.cpp)
add_dependencies(homography ${PROJECT_NAME}_gencfg)
target_link_libraries(homography ${catkin_LIBRARIES} ${OpenCV_LIBRARIES})

install(TARGETS camera camera_timer camera_polling camera_stereo homography
  ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
  LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
  RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
)

foreach(dir bag config launch)
    install(DIRECTORY ${dir}/
        DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}/${dir})
endforeach(dir)

Then I use catkin_make again to build the package. The catkin_make output is：

Base path: /home/ally/dev/catkin_ws
Source space: /home/ally/dev/catkin_ws/src
Build space: /home/ally/dev/catkin_ws/build
Devel space: /home/ally/dev/catkin_ws/devel
Install space: /home/ally/dev/catkin_ws/install
####
#### Running command: "make cmake_check_build_system" in "/home/ally/dev/catkin_ws/build"
####
####
#### Running command: "make -j1 -l1" in "/home/ally/dev/catkin_ws/build"
####

The catkin_make did not add targets to camera.cpp. I cannot find executable inside the devel/lib/<package> and therefore cannot run the node. Where could go wrong? Please help me out. Thank you:)