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    动手学ros2第5章进阶篇-控制OLED-自定义消息接口

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    ROS 2相关问题
    ros2 humble ros2 添加接口
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    • 4439640734
      房间里的大象 @小鱼
      最后由 编辑

      @小鱼 这里下载太慢了。挂梯子也一样

      1 条回复 最后回复 回复 引用 0
      • 19916236831
        1991623683
        最后由 编辑

        有一个问题,用git 克隆代码,编译出现错误:15795905-ed0a-427c-8303-868a76c3aa1b-图片.png ,请问是什么问题

        小鱼小 1 条回复 最后回复 回复 引用 0
        • 小鱼小
          小鱼 技术大佬 @1991623683
          最后由 编辑

          @1991623683 有重新编译过吗,删掉libmicroros

          新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

          1 条回复 最后回复 回复 引用 0
          • 8421452488
            likesingjumprap
            最后由 编辑

            该贴中的方法都试过了还是不行,有兄弟们解决了的吗,
            platformio.ini,因为报错,根据提示也加了很多依赖,还是不行

            lib_deps = 
            	https://gitee.com/ohhuo/micro_ros_platformio.git
            	adafruit/Adafruit SSD1306@^2.5.7
            	; adafruit/Adafruit GFX Library@^1.11.8
            	; adafruit/Adafruit BusIO@^1.14.4
            	; ; fabiobatsilva/ArduinoFake@^0.4.0
            
            小鱼小 1 条回复 最后回复 回复 引用 0
            • 小鱼小
              小鱼 技术大佬 @842145248
              最后由 编辑

              @842145248 你的报错是什么

              新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

              8421452488 1 条回复 最后回复 回复 引用 0
              • 8421452488
                likesingjumprap @小鱼
                最后由 编辑

                @小鱼 刚刚重新编译了下,好慢,麻烦大佬帮我看看

                Building micro-ROS library
                Found 36 compatible libraries
                Scanning dependencies...
                Dependency Graph
                |-- micro_ros_platformio @ 0.0.1+sha.085c5dd
                |-- Adafruit SSD1306 @ 2.5.7
                Building in release mode
                Compiling .pio/build/featheresp32/src/main.cpp.o
                Building .pio/build/featheresp32/bootloader.bin
                Generating partitions .pio/build/featheresp32/partitions.bin
                esptool.py v4.2.1
                Creating esp32 image...
                Merged 1 ELF section
                Successfully created esp32 image.
                Compiling .pio/build/featheresp32/lib1a4/micro_ros_platformio/platform_code/arduino/clock_gettime.cpp.o
                Compiling .pio/build/featheresp32/lib1a4/micro_ros_platformio/platform_code/arduino/serial/micro_ros_transport.cpp.o
                Compiling .pio/build/featheresp32/lib2c3/Adafruit SSD1306/Adafruit_SSD1306.cpp.o
                In file included from .pio/libdeps/featheresp32/Adafruit SSD1306/Adafruit_SSD1306.cpp:53:
                .pio/libdeps/featheresp32/Adafruit SSD1306/Adafruit_SSD1306.h:42:10: fatal error: Adafruit_GFX.h: No such file or directory
                
                **********************************************************************
                * Looking for Adafruit_GFX.h dependency? Check our library registry!
                *
                * CLI  > platformio lib search "header:Adafruit_GFX.h"
                * Web  > https://registry.platformio.org/search?q=header:Adafruit_GFX.h
                *
                **********************************************************************
                
                 #include <Adafruit_GFX.h>
                          ^~~~~~~~~~~~~~~~
                compilation terminated.
                Compiling .pio/build/featheresp32/FrameworkArduino/Esp.cpp.o
                Compiling .pio/build/featheresp32/FrameworkArduino/FirmwareMSC.cpp.o
                *** [.pio/build/featheresp32/lib2c3/Adafruit SSD1306/Adafruit_SSD1306.cpp.o] Error 1
                ======================================== [FAILED] Took 658.83 seconds ========================================
                
                 *  The terminal process "platformio 'run'" terminated with exit code: 1. 
                 *  Terminal will be reused by tasks, press any key to close it. 
                
                小鱼小 1 条回复 最后回复 回复 引用 0
                • 小鱼小
                  小鱼 技术大佬 @842145248
                  最后由 编辑

                  @842145248 再贴一下完整的代码

                  新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

                  8421452488 1 条回复 最后回复 回复 引用 0
                  • 8421452488
                    likesingjumprap @小鱼
                    最后由 编辑

                    @小鱼
                    platformio.ini

                    [env:featheresp32]
                    platform = espressif32
                    board = featheresp32
                    framework = arduino
                    lib_deps = 
                    	https://gitee.com/ohhuo/micro_ros_platformio.git
                    	adafruit/Adafruit SSD1306@^2.5.7
                    

                    CMakeLists.txt

                    cmake_minimum_required(VERSION 3.5)
                    project(fishbot_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)
                    # 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()
                    
                    find_package(rosidl_default_generators REQUIRED)
                    
                    rosidl_generate_interfaces(${PROJECT_NAME}
                      "srv/OledControl.srv"
                     )
                    
                    ament_package()
                    

                    package.xml

                    <?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>fishbot_interfaces</name>
                      <version>0.0.0</version>
                      <description>TODO: Package description</description>
                      <maintainer email="root@todo.todo">root</maintainer>
                      <license>TODO: License declaration</license>
                    
                      <buildtool_depend>ament_cmake</buildtool_depend>
                    
                      <build_depend>rosidl_default_generators</build_depend>
                      <exec_depend>rosidl_default_runtime</exec_depend>
                      <member_of_group>rosidl_interface_packages</member_of_group>
                    
                      <test_depend>ament_lint_auto</test_depend>
                      <test_depend>ament_lint_common</test_depend>
                    
                      <export>
                        <build_type>ament_cmake</build_type>
                      </export>
                    </package>
                    

                    extra_package包

                    extra_packages/fishbot_interfaces/
                    ├── CMakeLists.txt
                    ├── include
                    │   └── fishbot_interfaces
                    ├── package.xml
                    ├── src
                    └── srv
                        └── OledControl.srv
                    
                    小鱼小 1 条回复 最后回复 回复 引用 0
                    • 小鱼小
                      小鱼 技术大佬 @842145248
                      最后由 编辑

                      @842145248 是 src/main.cpp ,你的错误在 main函数里不是自定义功能包造成的

                      新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

                      1 条回复 最后回复 回复 引用 0
                      • 8421452488
                        likesingjumprap @847718956
                        最后由 编辑

                        @小鱼 感谢大佬的的回复,我补充完整了main.cpp后可以编译了,我按照教程还没到编写main.cpp,我以为不用先写main.cpp😂 ,编译看看是否有错

                        但是命令行调用服务时出现了类似这种导包问题:重新运行代码时出现:UnsupportedTypeSupport: Could not import 'rosidl_typesupport_c' for package 'village_interfaces', CMakelist.txt 和 packages.xml,看着好像都没问题,麻烦大佬再帮我看看

                        $ source install/setup.bash  && ros2 service call  /oled_control fishbot_interfaces/srv/OledControl "{px: 0, py: 0, data: 'nihao'}"
                        Traceback (most recent call last):
                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rosidl_generator_py/import_type_support_impl.py", line 46, in import_type_support
                            return importlib.import_module(module_name, package=pkg_name)
                          File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
                            return _bootstrap._gcd_import(name[level:], package, level)
                          File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
                          File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
                          File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
                        ModuleNotFoundError: No module named 'fishbot_interfaces.fishbot_interfaces_s__rosidl_typesupport_c'
                        
                        During handling of the above exception, another exception occurred:
                        
                        Traceback (most recent call last):
                          File "/opt/ros/humble/bin/ros2", line 33, in <module>
                            sys.exit(load_entry_point('ros2cli==0.18.7', 'console_scripts', 'ros2')())
                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2cli/cli.py", line 89, in main
                            rc = extension.main(parser=parser, args=args)
                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/command/service.py", line 41, in main
                            return extension.main(args=args)
                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/verb/call.py", line 58, in main
                            return requester(
                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/verb/call.py", line 86, in requester
                            cli = node.create_client(srv_module, service_name)
                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/node.py", line 1413, in create_client
                            check_is_valid_srv_type(srv_type)
                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/type_support.py", line 51, in check_is_valid_srv_type
                            check_for_type_support(srv_type)
                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/type_support.py", line 29, in check_for_type_support
                            msg_or_srv_type.__class__.__import_type_support__()
                          File "/home/nzb/vscode_project/cplus_demo/ros2_demo/chat13/example14_custom_interfaces/extra_packages/install/fishbot_interfaces/local/lib/python3.10/dist-packages/fishbot_interfaces/srv/_oled_control.py", line 303, in __import_type_support__
                            module = import_type_support('fishbot_interfaces')
                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rosidl_generator_py/import_type_support_impl.py", line 48, in import_type_support
                            raise UnsupportedTypeSupport(pkg_name)
                        rosidl_generator_py.import_type_support_impl.UnsupportedTypeSupport: Could not import 'rosidl_typesupport_c' for package 'fishbot_interfaces'
                        

                        main.cpp

                        #include <Arduino.h>
                        #include <micro_ros_platformio.h>
                        
                        #include <rcl/rcl.h>
                        #include <rclc/rclc.h>
                        #include <rclc/executor.h>
                        #include <micro_ros_utilities/string_utilities.h>
                        
                        #include "Wire.h"
                        #include <Adafruit_GFX.h>
                        #include <Adafruit_SSD1306.h>
                        
                        #include <fishbot_interfaces/srv/oled_control.h>
                        
                        rclc_executor_t executor;
                        rclc_support_t support;
                        rcl_allocator_t allocator;
                        rcl_node_t node;
                        
                        rcl_service_t service;
                        
                        fishbot_interfaces__srv__OledControl_Request req;
                        fishbot_interfaces__srv__OledControl_Response res;
                        
                        Adafruit_SSD1306 display;
                        
                        void service_cb(const void *req, void *res)
                        {
                          fishbot_interfaces__srv__OledControl_Request *req_in = (fishbot_interfaces__srv__OledControl_Request *)req;
                          fishbot_interfaces__srv__OledControl_Response *res_in = (fishbot_interfaces__srv__OledControl_Response *)res;
                          display.clearDisplay();
                          display.setCursor(req_in->px, req_in->py);
                          display.println(req_in->data.data);
                          display.display();
                          res_in->result = 0;
                        }
                        
                        void setup()
                        {
                          // put your setup code here, to run once:
                          Serial.begin(115200);
                          set_microros_serial_transports(Serial);
                          delay(2000);
                          allocator = rcl_get_default_allocator();
                          rclc_support_init(&support, 0, NULL, &allocator);
                          rclc_node_init_default(&node, "example14_interfaces", "", &support);
                          rclc_service_init_default(&service, &node, ROSIDL_GET_SRV_TYPE_SUPPORT(fishbot_interfaces, srv, OledControl), "/oled_control");
                          rclc_executor_init(&executor, &support.context, 1, &allocator);
                          rclc_executor_add_service(&executor, &service, &req, &res, service_cb);
                          req.data = micro_ros_string_utilities_init_with_size(100);
                        
                          Wire.begin(18, 19);
                          display = Adafruit_SSD1306(128, 64, &Wire);
                          display.begin(SSD1306_SWITCHCAPVCC, 0x3c);
                          display.clearDisplay();
                          display.setTextSize(1);
                          display.setCursor(0, 0);
                          display.setTextColor(SSD1306_WHITE);
                          display.println("hello world!");
                          display.display();
                        }
                        
                        void loop()
                        {
                          // put your main code here, to run repeatedly:
                          delay(100);
                          rclc_executor_spin_some(&executor, RCL_MS_TO_NS(100));
                        }
                        
                        小鱼小 1 条回复 最后回复 回复 引用 0
                        • 小鱼小
                          小鱼 技术大佬 @842145248
                          最后由 编辑

                          @842145248

                          $ source install/setup.bash && ros2 service call /oled_control fishbot_interfaces/srv/OledControl "{px: 0, py: 0, data: 'nihao'}"

                          这句在哪一个目录下执行的

                          新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

                          8421452488 1 条回复 最后回复 回复 引用 0
                          • 8421452488
                            likesingjumprap @小鱼
                            最后由 编辑

                            @小鱼 example14_custom_interfaces/extra_packages 目录下

                            小鱼小 1 条回复 最后回复 回复 引用 0
                            • 小鱼小
                              小鱼 技术大佬 @842145248
                              最后由 编辑

                              @842145248 删除掉build和install ,重新colcon build后测试,还报错就贴一下 CMakeLists.txt 和 srv文件

                              新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

                              8421452488 1 条回复 最后回复 回复 引用 0
                              • 8421452488
                                likesingjumprap @小鱼
                                最后由 编辑

                                @小鱼 删除重新编译后还不行

                                CMakelists.txt

                                cmake_minimum_required(VERSION 3.5)
                                project(fishbot_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)
                                # 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()
                                
                                find_package(rosidl_default_generators REQUIRED)
                                
                                rosidl_generate_interfaces(${PROJECT_NAME}
                                  "srv/OledControl.srv"
                                 )
                                
                                ament_package()
                                

                                OledControl.srv

                                int32 px
                                int32 py
                                string data
                                ---
                                int32 result
                                
                                小鱼小 1 条回复 最后回复 回复 引用 0
                                • 小鱼小
                                  小鱼 技术大佬 @842145248
                                  最后由 编辑

                                  @842145248 用示例工程的功能包试试:https://github.com/fishros/example_micoros_board

                                  新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

                                  8421452488 1 条回复 最后回复 回复 引用 0
                                  • 8421452488
                                    likesingjumprap @小鱼
                                    最后由 编辑

                                    @小鱼 示例也不行

                                     *  Executing task: platformio run 
                                    
                                    Processing featheresp32 (platform: espressif32; board: featheresp32; framework: arduino)
                                    ---------------------------------------------------------------------------------------------------------------------------------------------------
                                    Library Manager: Installing git+https://gitee.com/ohhuo/micro_ros_platformio.git
                                    git version 2.34.1
                                    Cloning into '/home/nzb/.platformio/.cache/tmp/pkg-installing-mkfoxl4p'...
                                    remote: Enumerating objects: 5773, done.
                                    remote: Counting objects: 100% (5773/5773), done.
                                    remote: Compressing objects: 100% (2618/2618), done.
                                    remote: Total 5773 (delta 2905), reused 5732 (delta 2883), pack-reused 0
                                    Receiving objects: 100% (5773/5773), 19.12 MiB | 5.79 MiB/s, done.
                                    Resolving deltas: 100% (2905/2905), done.
                                    Library Manager: micro_ros_platformio@0.0.1+sha.085c5dd has been installed!
                                    Library Manager: Installing adafruit/Adafruit SSD1306 @ ^2.5.7
                                    Unpacking  [####################################]  100%
                                    Library Manager: Adafruit SSD1306@2.5.7 has been installed!
                                    Library Manager: Resolving dependencies...
                                    Library Manager: Installing Adafruit GFX Library
                                    Unpacking  [####################################]  100%
                                    Library Manager: Adafruit GFX Library@1.11.8 has been installed!
                                    Library Manager: Resolving dependencies...
                                    Library Manager: Installing Adafruit BusIO
                                    Unpacking  [####################################]  100%
                                    Library Manager: Adafruit BusIO@1.14.4 has been installed!
                                    Verbose mode can be enabled via `-v, --verbose` option
                                    CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/featheresp32.html
                                    PLATFORM: Espressif 32 (5.2.0) > Adafruit ESP32 Feather
                                    HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
                                    DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
                                    PACKAGES: 
                                     - framework-arduinoespressif32 @ 3.20005.220925 (2.0.5) 
                                     - tool-esptoolpy @ 1.40201.0 (4.2.1) 
                                     - toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch3
                                    LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
                                    LDF Modes: Finder ~ chain, Compatibility ~ soft
                                    Installing pyyaml with pip at PlatformIO environment
                                    /home/nzb/.platformio/penv/bin/python -m pip install pyyaml
                                    Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
                                    Requirement already satisfied: pyyaml in /home/nzb/.platformio/penv/lib/python3.10/site-packages (6.0)
                                    
                                    [notice] A new release of pip available: 22.3.1 -> 23.2.1
                                    [notice] To update, run: pip install --upgrade pip
                                    Installing markupsafe==2.0.1 with pip at PlatformIO environment
                                    /home/nzb/.platformio/penv/bin/python -m pip install markupsafe==2.0.1
                                    Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
                                    Requirement already satisfied: markupsafe==2.0.1 in /home/nzb/.platformio/penv/lib/python3.10/site-packages (2.0.1)
                                    
                                    [notice] A new release of pip available: 22.3.1 -> 23.2.1
                                    [notice] To update, run: pip install --upgrade pip
                                    Configuring featheresp32 with transport serial
                                    micro-ROS already built
                                    Found 36 compatible libraries
                                    Scanning dependencies...
                                    Dependency Graph
                                    |-- micro_ros_platformio @ 0.0.1+sha.085c5dd
                                    |-- Adafruit SSD1306 @ 2.5.7
                                    |-- Wire @ 2.0.0
                                    |-- Adafruit GFX Library @ 1.11.8
                                    Building in release mode
                                    Compiling .pio/build/featheresp32/src/main.cpp.o
                                    Building .pio/build/featheresp32/bootloader.bin
                                    Generating partitions .pio/build/featheresp32/partitions.bin
                                    esptool.py v4.2.1
                                    Creating esp32 image...
                                    Merged 1 ELF section
                                    Successfully created esp32 image.
                                    src/main.cpp:13:10: fatal error: fishbot_interfaces/srv/oled_control.h: No such file or directory
                                     #include <fishbot_interfaces/srv/oled_control.h> // 添加接口
                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                    compilation terminated.
                                    Compiling .pio/build/featheresp32/lib61f/micro_ros_platformio/platform_code/arduino/clock_gettime.cpp.o
                                    Compiling .pio/build/featheresp32/lib61f/micro_ros_platformio/platform_code/arduino/serial/micro_ros_transport.cpp.o
                                    Compiling .pio/build/featheresp32/lib31c/Wire/Wire.cpp.o
                                    Compiling .pio/build/featheresp32/lib271/SPI/SPI.cpp.o
                                    Compiling .pio/build/featheresp32/libaae/Adafruit BusIO/Adafruit_BusIO_Register.cpp.o
                                    *** [.pio/build/featheresp32/src/main.cpp.o] Error 1
                                    =========================================================== [FAILED] Took 16.30 seconds ===========================================================
                                    
                                     *  The terminal process "platformio 'run'" terminated with exit code: 1. 
                                     *  Terminal will be reused by tasks, press any key to close it. 
                                    
                                    小鱼小 1 条回复 最后回复 回复 引用 0
                                    • 小鱼小
                                      小鱼 技术大佬 @842145248
                                      最后由 编辑

                                      @842145248 需要重新构建microros库,按照你之前的流程,或者把extra_pkgs 替换下

                                      新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

                                      8421452488 1 条回复 最后回复 回复 引用 0
                                      • 8421452488
                                        likesingjumprap @小鱼
                                        最后由 842145248 编辑

                                        @小鱼 鱼哥,还是不行😭 ,libmicroros 删除了,重新编译,终端打印编译过程没报错,也通过了,但是中间报这种影响吗?

                                        17e49679-1fb1-470c-9c0c-c0092bfdb7eb-image.png

                                        c1fd2f5f-b8d3-4dcb-ba2e-58c8e41f4eb9-image.png

                                        看 libmicroros 目录下也有那个fishbot_interfaces了
                                        026f6e6c-f8bd-4017-9d44-7ea835beffdc-image.png

                                        执行ros2 service call /oled_control fishbot_interfaces/srv/OledControl "{px: 0, py: 0, data: 'nihao'}" 报错还是之前这个:

                                        Traceback (most recent call last):
                                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rosidl_generator_py/import_type_support_impl.py", line 46, in import_type_support
                                            return importlib.import_module(module_name, package=pkg_name)
                                          File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
                                            return _bootstrap._gcd_import(name[level:], package, level)
                                          File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
                                          File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
                                          File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
                                        ModuleNotFoundError: No module named 'fishbot_interfaces.fishbot_interfaces_s__rosidl_typesupport_c'
                                        
                                        During handling of the above exception, another exception occurred:
                                        
                                        Traceback (most recent call last):
                                          File "/opt/ros/humble/bin/ros2", line 33, in <module>
                                            sys.exit(load_entry_point('ros2cli==0.18.7', 'console_scripts', 'ros2')())
                                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2cli/cli.py", line 89, in main
                                            rc = extension.main(parser=parser, args=args)
                                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/command/service.py", line 41, in main
                                            return extension.main(args=args)
                                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/verb/call.py", line 58, in main
                                            return requester(
                                          File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/verb/call.py", line 86, in requester
                                            cli = node.create_client(srv_module, service_name)
                                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/node.py", line 1413, in create_client
                                            check_is_valid_srv_type(srv_type)
                                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/type_support.py", line 51, in check_is_valid_srv_type
                                            check_for_type_support(srv_type)
                                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/type_support.py", line 29, in check_for_type_support
                                            msg_or_srv_type.__class__.__import_type_support__()
                                          File "/home/nzb/vscode_project/cplus_demo/ros2_demo/chat13/example14_custom_interfaces/extra_packages/install/fishbot_interfaces/local/lib/python3.10/dist-packages/fishbot_interfaces/srv/_oled_control.py", line 303, in __import_type_support__
                                            module = import_type_support('fishbot_interfaces')
                                          File "/opt/ros/humble/local/lib/python3.10/dist-packages/rosidl_generator_py/import_type_support_impl.py", line 48, in import_type_support
                                            raise UnsupportedTypeSupport(pkg_name)
                                        rosidl_generator_py.import_type_support_impl.UnsupportedTypeSupport: Could not import 'rosidl_typesupport_c' for package 'fishbot_interfaces'
                                        
                                        
                                        小鱼小 1 条回复 最后回复 回复 引用 0
                                        • 小鱼小
                                          小鱼 技术大佬 @842145248
                                          最后由 编辑

                                          @842145248 在 动手学ros2第5章进阶篇-控制OLED-自定义消息接口 中说:

                                          ros2 service call /oled_control fishbot_interfaces/srv/OledControl "{px: 0, py: 0, data: 'nihao'}"

                                          真是奇怪了,你在extra_pkgs下依次运行下面的指令,把结果反馈出来看看

                                          rm -rf build install log
                                          colcon build
                                          source install/setup.bash
                                          ros2 serivice list
                                          ros2 interface list | grep fishbot
                                          ros2 service call /oled_control fishbot_interfaces/srv/OledControl "{px: 0, py: 0, data: 'nihao'
                                          

                                          新书配套视频:https://www.bilibili.com/video/BV1GW42197Ck/

                                          8421452488 1 条回复 最后回复 回复 引用 0
                                          • 8421452488
                                            likesingjumprap @小鱼
                                            最后由 编辑

                                            @小鱼
                                            rm -rf build install log && colcon build --packages-up-to fishbot_interfaces && source install/setup.bash

                                            [0.467s] WARNING:colcon.colcon_ros.prefix_path.ament:The path '/home/nzb/vscode_project/cplus_demo/ros2_demo/chat13/example14_custom_interfaces/extra_packages/install/fishbot_interfaces' in the environment variable AMENT_PREFIX_PATH doesn't exist
                                            [0.468s] WARNING:colcon.colcon_ros.prefix_path.catkin:The path '/home/nzb/vscode_project/cplus_demo/ros2_demo/chat13/example14_custom_interfaces/extra_packages/install/fishbot_interfaces' in the environment variable CMAKE_PREFIX_PATH doesn't exist
                                            Starting >>> fishbot_interfaces
                                            Finished <<< fishbot_interfaces [5.13s]                     
                                            
                                            Summary: 1 package finished [5.37s]
                                            

                                            ros2 service list && ros2 interface list | grep fish

                                            /oled_control
                                            fishbot_interfaces/srv/OledControl
                                            
                                            

                                            ros2 service call /oled_control fishbot_interfaces/srv/OledControl "{px: 0, py: 0, data: 'nihao'}"

                                            Traceback (most recent call last):
                                              File "/opt/ros/humble/local/lib/python3.10/dist-packages/rosidl_generator_py/import_type_support_impl.py", line 46, in import_type_support
                                                return importlib.import_module(module_name, package=pkg_name)
                                              File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
                                                return _bootstrap._gcd_import(name[level:], package, level)
                                              File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
                                              File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
                                              File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
                                            ModuleNotFoundError: No module named 'fishbot_interfaces.fishbot_interfaces_s__rosidl_typesupport_c'
                                            
                                            During handling of the above exception, another exception occurred:
                                            
                                            Traceback (most recent call last):
                                              File "/opt/ros/humble/bin/ros2", line 33, in <module>
                                                sys.exit(load_entry_point('ros2cli==0.18.7', 'console_scripts', 'ros2')())
                                              File "/opt/ros/humble/lib/python3.10/site-packages/ros2cli/cli.py", line 89, in main
                                                rc = extension.main(parser=parser, args=args)
                                              File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/command/service.py", line 41, in main
                                                return extension.main(args=args)
                                              File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/verb/call.py", line 58, in main
                                                return requester(
                                              File "/opt/ros/humble/lib/python3.10/site-packages/ros2service/verb/call.py", line 86, in requester
                                                cli = node.create_client(srv_module, service_name)
                                              File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/node.py", line 1413, in create_client
                                                check_is_valid_srv_type(srv_type)
                                              File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/type_support.py", line 51, in check_is_valid_srv_type
                                                check_for_type_support(srv_type)
                                              File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/type_support.py", line 29, in check_for_type_support
                                                msg_or_srv_type.__class__.__import_type_support__()
                                              File "/home/nzb/vscode_project/cplus_demo/ros2_demo/chat13/example14_custom_interfaces/extra_packages/install/fishbot_interfaces/local/lib/python3.10/dist-packages/fishbot_interfaces/srv/_oled_control.py", line 303, in __import_type_support__
                                                module = import_type_support('fishbot_interfaces')
                                              File "/opt/ros/humble/local/lib/python3.10/dist-packages/rosidl_generator_py/import_type_support_impl.py", line 48, in import_type_support
                                                raise UnsupportedTypeSupport(pkg_name)
                                            rosidl_generator_py.import_type_support_impl.UnsupportedTypeSupport: Could not import 'rosidl_typesupport_c' for package 'fishbot_interfaces'
                                            
                                            小鱼小 1 条回复 最后回复 回复 引用 0
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