动手4.3.2报错

looking。

@小鱼
消息定义文件如下：

# 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

cmake.txt如下：

cmake_minimum_required(VERSION 3.5)
project(village_interfaces)

# Default to C99
if(NOT CMAKE_C_STANDARD)
  set(CMAKE_C_STANDARD 99)
endif()

# Default to C++14
if(NOT CMAKE_CXX_STANDARD)
  set(CMAKE_CXX_STANDARD 14)
endif()

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---
  "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
  # uncomment the line when a copyright and license is not present in all source files
  #set(ament_cmake_copyright_FOUND TRUE)
  # the following line skips cpplint (only works in a git repo)
  # uncomment the line when this package is not in a git repo
  #set(ament_cmake_cpplint_FOUND TRUE)
  ament_lint_auto_find_test_dependencies()
endif()

ament_package()

目录结构如下：

(pytorch) l@l-GF63-Thin-9SC:~/桌面/town_ws/village_interfaces$ tree
.
├── CMakeLists.txt
├── include
│   └── village_interfaces
├── msg
│   └── Novel.msg
├── package.xml
└── src

4 directories, 3 files

looking。

此回复已被删除！

小鱼

@505106035 复制粘贴你的代码我做了一下测试，编译没问题，除了packages.xml需要增加一个

<member_of_group>rosidl_interface_packages</member_of_group>

增加完后

<?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="fishros@foxmail.com">pear</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>
  <member_of_group>rosidl_interface_packages</member_of_group>
  <export>
    <build_type>ament_cmake</build_type>
  </export>
</package>

你可以试试

小鱼

@小鱼确认上下文有ros2环境，试试colcon build指令（不加packages-select）

looking。

@小鱼不行。还是同样的报错。难道是我用的ubuntu18.04配置的ros2-eloquent这个版本和教程不一样？我看那个一键安装的ros2的脚本就只有到eloquent这个版本

looking。

@小鱼
如下:

(pytorch) l@l-GF63-Thin-9SC:~/桌面/town_ws$ ros2
usage: ros2 [-h] Call `ros2 <command> -h` for more detailed usage. ...

ros2 is an extensible command-line tool for ROS 2.

optional arguments:
  -h, --help            show this help message and exit

Commands:
  action     Various action related sub-commands
  component  Various component related sub-commands
  daemon     Various daemon related sub-commands
  doctor     Check ROS setup and other potential issues
  interface  Show information about ROS interfaces
  launch     Run a launch file
  lifecycle  Various lifecycle related sub-commands
  msg        Various msg related sub-commands
  multicast  Various multicast related sub-commands
  node       Various node related sub-commands
  param      Various param related sub-commands
  pkg        Various package related sub-commands
  run        Run a package specific executable
  security   Various security related sub-commands
  service    Various service related sub-commands
  srv        Various srv related sub-commands
  topic      Various topic related sub-commands
  wtf        Use `wtf` as alias to `doctor`

  Call `ros2 <command> -h` for more detailed usage.

运行colcon build：

(pytorch) l@l-GF63-Thin-9SC:~/桌面/town_ws$ colcon build
Starting >>> village_interfaces
Starting >>> village_li
Starting >>> village_wang
Finished <<< village_wang [0.47s]                                                                                         
--- stderr: village_interfaces                                                         
CMake Error at /opt/ros/eloquent/share/rosidl_cmake/cmake/rosidl_generate_interfaces.cmake:240 (list):
  list index: 1 out of range (-1, 0)
Call Stack (most recent call first):
  CMakeLists.txt:24 (rosidl_generate_interfaces)


CMake Error at /opt/ros/eloquent/share/rosidl_generator_cpp/cmake/rosidl_generator_cpp_generate_interfaces.cmake:57 (message):
  Target dependency
  '/town_ws/build/village_interfaces/rosidl_adapter/village_interfaces/msg/Novel.idl'
  does not exist
Call Stack (most recent call first):
  /opt/ros/eloquent/share/ament_cmake_core/cmake/core/ament_execute_extensions.cmake:48 (include)
  /opt/ros/eloquent/share/rosidl_cmake/cmake/rosidl_generate_interfaces.cmake:286 (ament_execute_extensions)
  CMakeLists.txt:24 (rosidl_generate_interfaces)


---
Failed   <<< village_interfaces [0.60s, exited with code 1]
Aborted  <<< village_li [0.82s]                     

Summary: 1 package finished [0.97s]
  1 package failed: village_interfaces
  1 package aborted: village_li
  1 package had stderr output: village_interfaces

还是一样的报错，就说cmake的错，

CMake Error at /opt/ros/eloquent/share/rosidl_cmake/cmake/rosidl_generate_interfaces.cmake:240 (list):
  list index: 1 out of range (-1, 0)
Call Stack (most recent call first):
  CMakeLists.txt:24 (rosidl_generate_interfaces)

简直头疼，不知道什么毛病。

小鱼

@505106035 版本问题有很大可能，你用的版本已经停止维护有一段时间了。

小鱼

@505106035 ubuntu18上没有foxy版本，只有ubuntu20才支持

looking。

@小鱼我用win电脑装了个vm配置了u20。装的ros2-rolling就好使。醉了

小鱼

@505106035 ROS2前几个版本更新的很快，所以差异比较大

吉

此回复已被删除！

吉

@小鱼鱼哥，我的系统版本是22.04.3，ROS版本是humble，和上面的问题有点类似，但感觉不太一样，应该怎么解决？？

列表回复: 动手4.3.2报错

liu@liu-virtual-machine:~/桌面$ git clone https://github.com/fishros/fishbot.git -b v1.0.0 --depth=1
fatal: destination path 'fishbot' already exists and is not an empty directory.
liu@liu-virtual-machine:~/桌面$ 
liu@liu-virtual-machine:~/桌面$ cd fishbot
liu@liu-virtual-machine:~/桌面/fishbot$ rosdep install --from-paths src --ignore-src -y  -r # 安装依赖
#All required rosdeps installed successfully
liu@liu-virtual-machine:~/桌面/fishbot$ colcon build
Starting >>> fishbot_bringup
Starting >>> fishbot_cartographer
Finished <<< fishbot_cartographer [0.19s]                                
Starting >>> fishbot_description
Finished <<< fishbot_bringup [0.28s]
Starting >>> fishbot_interfaces
--- stderr: fishbot_interfaces                                    
CMake Error at /opt/ros/humble/share/rosidl_cmake/cmake/rosidl_generate_interfaces.cmake:240 (list):
  list index: 1 out of range (-1, 0)
Call Stack (most recent call first):
  CMakeLists.txt:29 (rosidl_generate_interfaces)


CMake Error at /opt/ros/humble/share/rosidl_generator_c/cmake/rosidl_generator_c_generate_interfaces.cmake:69 (message):
  Target dependency
  '/fishbot/build/fishbot_interfaces/rosidl_adapter/fishbot_interfaces/srv/FishBotConfig.idl'
  does not exist
Call Stack (most recent call first):
  /opt/ros/humble/share/ament_cmake_core/cmake/core/ament_execute_extensions.cmake:48 (include)
  /opt/ros/humble/share/rosidl_cmake/cmake/rosidl_generate_interfaces.cmake:286 (ament_execute_extensions)
  CMakeLists.txt:29 (rosidl_generate_interfaces)


---
Failed   <<< fishbot_interfaces [0.44s, exited with code 1]
Aborted  <<< fishbot_description [0.56s]

Summary: 2 packages finished [1.20s]
  1 package failed: fishbot_interfaces
  1 package aborted: fishbot_description
  2 packages had stderr output: fishbot_description fishbot_interfaces
  1 package not processed

Elysia

@751365166 尽量避免路径中出现中文，这会产生很多未定义行为。（ROS开发者可不会想到你会输入除英文以外的路径哈哈

吉

@ganyuanzhen 我懂了！！！感谢，问题出在，我应该新建一个英文名称的文件夹，然后在新建文件中运行终端命令！而不应该直接在桌面运行终端。

liu@liu-virtual-machine:~/ROS$ git clone https://github.com/fishros/fishbot.git -b v1.0.0 --depth=1
Cloning into 'fishbot'...
remote: Enumerating objects: 84, done.
remote: Counting objects: 100% (84/84), done.
remote: Compressing objects: 100% (69/69), done.
remote: Total 84 (delta 21), reused 46 (delta 7), pack-reused 0
Receiving objects: 100% (84/84), 332.98 KiB | 422.00 KiB/s, done.
Resolving deltas: 100% (21/21), done.
liu@liu-virtual-machine:~/ROS$ cd fishbot
liu@liu-virtual-machine:~/ROS/fishbot$ rosdep install --from-paths src --ignore-src -y  -r # 安装依赖
#All required rosdeps installed successfully
liu@liu-virtual-machine:~/ROS/fishbot$ colcon build
Starting >>> fishbot_bringup
Starting >>> fishbot_cartographer
Finished <<< fishbot_cartographer [0.53s]                           
Starting >>> fishbot_description
Finished <<< fishbot_description [0.57s]                            
Starting >>> fishbot_interfaces
Finished <<< fishbot_interfaces [7.94s]                                 
Starting >>> fishbot_navigation2
Finished <<< fishbot_navigation2 [0.63s]                                 
Finished <<< fishbot_bringup [13.5s]                       

Summary: 5 packages finished [13.9s]