如果slam package依賴robot_msg package趟佃，此時需要先編譯robot_msg.
一客税、在slam/package.xml中
<depend>robot_msg</depend>
二惨恭、在slam/CMakeList.txt中
catkin_package(
CATKIN_DEPENDS roscpp robot_msg
)
add_dependencies(${PROJECT_NAME} ${catkin_EXPORTED_TARGETS})
如果是slam工程內(nèi)部的自定義消息
在CMakeList.txt中添加：
add_dependencies(${PROJECT_NAME}__generate_messages_cpp )
add_executable(back_end_node src/apps/back_end_node.cpp)
add_dependencies(back_end_node lidar_localization_generate_messages_cpp ${catkin_EXPORTED_TARGETS})
target_link_libraries(back_end_node ${catkin_LIBRARIES} ${ALL_TARGET_LIBRARIES})
