ROS2入门篇第3章-自定义接口RCLCPP实战colcon build失败

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ROS2入门篇第3章-自定义接口RCLCPP实战colcon build失败代码也没问题啊，

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# 直接使用ROS2原始的数据类型
string content
# 图像消息，调用sensor_msgs下的Image类型
sensor_msgs/Image image

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cmake_minimum_required(VERSION 3.8)
project(village_interfaces)

if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
  add_compile_options(-Wall -Wextra -Wpedantic)
endif()

# find dependencies
find_package(ament_cmake REQUIRED)
#添加对sensor_msgs的
find_package(sensor_msgs REQUIRED)
find_package(rosidl_default_generators REQUIRED)
#添加消息文件和依赖
rosidl_generate_interfaces(${PROJECT_NAME}
  "msg/Novel.msg"
   DEPENDENCIES sensor_msgs
)

# uncomment the following section in order to fill in
# further dependencies manually.
# find_package(<dependency> REQUIRED)

if(BUILD_TESTING)
  find_package(ament_lint_auto REQUIRED)
  # the following line skips the linter which checks for copyrights
  # comment the line when a copyright and license is added to all source files
  set(ament_cmake_copyright_FOUND TRUE)
  # the following line skips cpplint (only works in a git repo)
  # comment the line when this package is in a git repo and when
  # a copyright and license is added to all source files
  set(ament_cmake_cpplint_FOUND TRUE)
  ament_lint_auto_find_test_dependencies()
endif()

ament_package()

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<?xml version="1.0"?>
<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
<package format="3">
  <name>village_interfaces</name>
  <version>0.0.0</version>
  <description>TODO: Package description</description>
  <maintainer email="lzh@todo.todo">lzh</maintainer>
  <license>TODO: License declaration</license>

  <buildtool_depend>ament_cmake</buildtool_depend>

  <test_depend>ament_lint_auto</test_depend>
  <test_depend>ament_lint_common</test_depend>

  <depend>sensor_msgs</depend>
  <build_depend>rosidl_default_generators</build_depend>
  <exec_depend>rosidl_default_runtime</exec_depend>
  <member_of_group>rosidl_interface_packages</member_of_group>


  <export>
    <build_type>ament_cmake</build_type>
  </export>
</package>