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    学习ROS2时遇到无法运行节点文件，终端提示“ModuleNotFoundError: No module named 'mycamera.t_pub'”

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    • 24250049362
      PEGASUS
      最后由 2425004936 编辑

      问题描述：

      我正在学习ROS2的节点与话题数据发布，但是运行节点时出现报错，我也按照教程在setup.py里面设定好了入口。但是还是无法运行节点（节点程序就是一个很简单的helloworld）ROS2版本是foxy，ubuntu20.04!

      具体细节和上下文：

      终端执行：
      pi@yahboom:~/cartographer_ws2$ ros2 run mycamera t_pub
      终端提示：
      Traceback (most recent call last):
      File "/home/pi/cartographer_ws2/ install/mycamera/lib/mycamera/t_pub", line 11, in <module>
      load_entry_point('mycamera==0.0.0', 'console_scripts', 't_pub')()
      File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 490, in load_entry_point
      return get_distribution(dist).load_entry_point(group, name)
      File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2854, in load_entry_point
      return ep.load()
      File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2445, in load
      return self.resolve()
      File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2451, in resolve
      module = import(self.module_name, fromlist=['name'], level=0)
      ModuleNotFoundError: No module named 'mycamera.t_pub'

      下方是t_pub.py文件：

      import rclpy                                   
from rclpy.node import Node                     
from std_msgs.msg import String                  
class PublisherNode(Node):

def __init__(self, name):
    super().__init__(name)                                    
    self.pub = self.create_publisher(String, "chatter", 10)  
    self.timer = self.create_timer(0.5, self.timer_callback)  
def timer_callback(self):                                     
    msg = String()                                           
    msg.data = 'Hello World'                                  
    self.pub.publish(msg)                                     
    self.get_logger().info('Publishing: "%s"' % msg.data)    

def main(args=None):                    
   rclpy.init(args=args)                           
   node = PublisherNode("topic_helloworld_pub")     
   rclpy.spin(node)                                 
   node.destroy_node()                             
   rclpy.shutdown()

      下方是setup.py：

      from setuptools import setup
package_name = 'mycamera' 
setup(
name=package_name,
version='0.0.0',
packages=[package_name],
data_files=[
    ('share/ament_index/resource_index/packages',
        ['resource/' + package_name]),
    ('share/' + package_name, ['package.xml']),
],
install_requires=['setuptools'],
zip_safe=True,
maintainer='pi',
maintainer_email='pi@todo.todo',
description='TODO: Package description',
license='TODO: License declaration',
tests_require=['pytest'],
entry_points={
    'console_scripts': [
     		't_pub			= mycamera.t_pub:main',

    ],
},

      ）

      尝试过的解决方法：

      网上搜索了相关问题，相关的问题都是某个特定的功能包模块无法找到，所以需要pip install就能解决，我遇到的问题是我这个”mycamera.t_pub“节点文件找不到，希望各位大佬能帮忙看看，谢谢。

      小鱼小 2 条回复 最后回复 回复 引用 0
      • 小鱼小
        小鱼 技术大佬 @2425004936
        最后由 编辑

        @2425004936 请仔细阅读提问要求后，按照提问模板提问：

        https://fishros.org.cn/forum/topic/151/提问前必看-不符合要求的问题拒绝回答

        再次强调，代码和日志不要截图。

        小鱼 ROS 2 新书上线！书籍购买链接： https://m.tb.cn/h.gFDBx39
        新书配套视频：https://www.bilibili.com/video/BV1GW42197Ck/

        24250049362 1 条回复 最后回复 回复 引用 0
        • 24250049362
          PEGASUS @小鱼
          最后由 编辑

          此回复已被删除！
          1 条回复 最后回复 回复 引用 0
          • 小鱼小
            小鱼 技术大佬 @2425004936
            最后由 小鱼 编辑

            @2425004936 我有几点疑问：

            1.这里为什么会有一个空格/ i
            在 学习ROS2时遇到无法运行节点文件，终端提示“ModuleNotFoundError: No module named 'mycamera.t_pub'” 中说：

            / inst

            2.你的 t_pub.py 文件从语法上来说是错误，可能构建不通过
            3. 请补充你的packages.xml 和 构建 source 过程日志，以及文件目录结构信息

            小鱼 ROS 2 新书上线！书籍购买链接： https://m.tb.cn/h.gFDBx39
            新书配套视频：https://www.bilibili.com/video/BV1GW42197Ck/

            24250049362 1 条回复 最后回复 回复 引用 0
            • 24250049362
              PEGASUS @小鱼
              最后由 编辑

              @小鱼
              1.空格我看了一下终端那边显示没有，应该是我复制过来的时候出现的空格
              2.t_pub.py文件应该没问题，因为我把小鱼的li4_pub.py代码复制进去运行，终端还是一样的提示。
              3.packages.xml文件：

              <?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>mycamera</name>
   <version>0.0.0</version>
   <description>TODO: Package description</description>
   <maintainer email="pi@todo.todo">pi</maintainer>
   <license>TODO: License declaration</license>
   <test_depend>ament_copyright</test_depend>
   <test_depend>ament_flake8</test_depend>
   <test_depend>ament_pep257</test_depend>
   <test_depend>python3-pytest</test_depend>

   <export>
      <build_type>ament_python</build_type>
   </export>
</package>

              （构建 source 过程日志操作不是很会）
              文件目录结构信息：
              ea571cb6-ed9b-42cb-a189-9e776d25812e-image.png

              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 @2425004936
                最后由 小鱼 编辑

                @2425004936 1.构建日志就是colcon build 的日志
                2. 第二张图应该直接复制粘贴文字，而不是截图，我都没办法复制其中内容告诉你正确的是什么样，除非去P图了，所以请你修改上述内容，我再做回答

                再次强调，代码和日志不要截图，非必要，不要用图片

                小鱼 ROS 2 新书上线！书籍购买链接： https://m.tb.cn/h.gFDBx39
                新书配套视频：https://www.bilibili.com/video/BV1GW42197Ck/

                24250049362 2 条回复 最后回复 回复 引用 0
                • 24250049362
                  PEGASUS @小鱼
                  最后由 2425004936 编辑

                  @小鱼
                  1.colcon build日志（我在工作空间下log文件夹里的latest_build找到了events.log,不确定是不是小鱼说的日志）
                  events.log:

                  [0.000000] (-) TimerEvent: {}
[0.000892] (-) JobUnselected: {'identifier': 'bringup'}
[0.001303] (-) JobUnselected: {'identifier': 'cartographer'}
[0.002081] (-) JobUnselected: {'identifier': 'cartographer_ros'}
[0.002852] (-) JobUnselected: {'identifier': 'cartographer_ros_msgs'}
[0.004336] (-) JobUnselected: {'identifier': 'image_color_lab'}
[0.004573] (-) JobUnselected: {'identifier': 'oradar_lidar'}
[0.004672] (-) JobUnselected: {'identifier': 'rf2o_laser_odometry'}
[0.004799] (-) JobUnselected: {'identifier': 'ros2_imu_filter_madgwick'}
[0.004882] (-) JobUnselected: {'identifier': 'tf_publisher'}
[0.004957] (-) JobUnselected: {'identifier': 'urdf_tutorial_r2d2'}
[0.005027] (-) JobUnselected: {'identifier': 'usb_camera_driver'}
[0.005096] (-) JobUnselected: {'identifier': 'vanjee_driver'}
[0.005164] (-) JobUnselected: {'identifier': 'vanjee_lidar'}
[0.005231] (-) JobUnselected: {'identifier': 'vanjee_msgs'}
[0.005300] (-) JobUnselected: {'identifier': 'voice_xgo_ctrl_run'}
[0.005369] (-) JobUnselected: {'identifier': 'wit_ros2_imu'}
[0.005436] (-) JobUnselected: {'identifier': 'yahboom_app_save_map'}
[0.005507] (-) JobUnselected: {'identifier': 'yahboom_attitude_record_interfaces'}
[0.005614] (-) JobUnselected: {'identifier': 'yahboom_base'}
[0.007198] (-) JobUnselected: {'identifier': 'yahboom_bringup'}
[0.008794] (-) JobUnselected: {'identifier': 'yahboom_color_identify_interfaces'}
[0.008962] (-) JobUnselected: {'identifier': 'yahboom_color_identify_server'}
[0.009104] (-) JobUnselected: {'identifier': 'yahboom_color_status_redis'}
[0.009229] (-) JobUnselected: {'identifier': 'yahboom_color_staus_redis'}
[0.009370] (-) JobUnselected: {'identifier': 'yahboom_color_tracking'}
[0.009506] (-) JobUnselected: {'identifier': 'yahboom_ctrl'}
[0.009630] (-) JobUnselected: {'identifier': 'yahboom_description'}
[0.009745] (-) JobUnselected: {'identifier': 'yahboom_dog_joint_state'}
[0.009867] (-) JobUnselected: {'identifier': 'yahboom_gait'}
[0.009988] (-) JobUnselected: {'identifier': 'yahboom_image_compress'}
[0.010104] (-) JobUnselected: {'identifier': 'yahboom_image_publisher_c'}
[0.010220] (-) JobUnselected: {'identifier': 'yahboom_laser'}
[0.010334] (-) JobUnselected: {'identifier': 'yahboom_mediapipe'}
[0.010497] (-) JobUnselected: {'identifier': 'yahboom_msgs'}
[0.010617] (-) JobUnselected: {'identifier': 'yahboom_point'}
[0.010744] (-) JobUnselected: {'identifier': 'yahboom_qrcode'}
[0.010885] (-) JobUnselected: {'identifier': 'yahboom_qrcode_tracking'}
[0.011024] (-) JobUnselected: {'identifier': 'yahboom_set_attitude_record'}
[0.011144] (-) JobUnselected: {'identifier': 'yahboom_set_height'}
[0.011279] (-) JobUnselected: {'identifier': 'yahboom_visual'}
[0.011450] (-) JobUnselected: {'identifier': 'yahboom_web_savmap_interfaces'}
[0.011591] (mycamera) JobQueued: {'identifier': 'mycamera', 'dependencies': OrderedDict()}
[0.011725] (mycamera) JobStarted: {'identifier': 'mycamera'}
[0.098852] (-) TimerEvent: {}
[0.199763] (-) TimerEvent: {}
[0.300737] (-) TimerEvent: {}
[0.423955] (-) TimerEvent: {}
[0.524720] (-) TimerEvent: {}
[0.625365] (-) TimerEvent: {}
[0.726052] (-) TimerEvent: {}
[0.826718] (-) TimerEvent: {}
[0.927403] (-) TimerEvent: {}
[1.028083] (-) TimerEvent: {}
[1.128691] (-) TimerEvent: {}
[1.229330] (-) TimerEvent: {}
[1.330054] (-) TimerEvent: {}
[1.430754] (-) TimerEvent: {}
[1.531372] (-) TimerEvent: {}
[1.631984] (-) TimerEvent: {}
[1.732733] (-) TimerEvent: {}
[1.833369] (-) TimerEvent: {}
[1.934069] (-) TimerEvent: {}
[2.035239] (-) TimerEvent: {}
[2.135924] (-) TimerEvent: {}
[2.236818] (-) TimerEvent: {}
[2.337981] (-) TimerEvent: {}
[2.438613] (-) TimerEvent: {}
[2.539232] (-) TimerEvent: {}
[2.639940] (-) TimerEvent: {}
[2.741299] (-) TimerEvent: {}
[2.841970] (-) TimerEvent: {}
[2.942617] (-) TimerEvent: {}
[3.043245] (-) TimerEvent: {}
[3.143862] (-) TimerEvent: {}
[3.244495] (-) TimerEvent: {}
[3.345151] (-) TimerEvent: {}
[3.445798] (-) TimerEvent: {}
[3.546455] (-) TimerEvent: {}
[3.647102] (-) TimerEvent: {}
[3.747801] (-) TimerEvent: {}
[3.848471] (-) TimerEvent: {}
[3.949126] (-) TimerEvent: {}
[4.049867] (-) TimerEvent: {}
[4.150506] (-) TimerEvent: {}
[4.251299] (-) TimerEvent: {}
[4.352318] (-) TimerEvent: {}
[4.452964] (-) TimerEvent: {}
[4.553718] (-) TimerEvent: {}
[4.654854] (-) TimerEvent: {}
[4.755575] (-) TimerEvent: {}
[4.856248] (-) TimerEvent: {}
[4.957099] (-) TimerEvent: {}
[5.039327] (mycamera) Command: {'cmd': ['/usr/bin/python3', 'setup.py', 'egg_info', '--egg-base', '../../build/mycamera', 'build', '--build-base', '/home/pi/cartographer_ws2/build/mycamera/build', 'install', '--prefix', '/home/pi/cartographer_ws2/install/mycamera', '--record', '/home/pi/cartographer_ws2/build/mycamera/install.log', '--single-version-externally-managed'], 'cwd': '/home/pi/cartographer_ws2/src/mycamera', 'env': {'LESSOPEN': '| /usr/bin/lesspipe %s', 'no_proxy': 'localhost,127.0.0.0/8,::1', 'USER': 'pi', 'SSH_AGENT_PID': '1690', 'XDG_SESSION_TYPE': 'x11', 'SHLVL': '1', 'LD_LIBRARY_PATH': '/home/pi/cartographer_ws2/install/yahboom_web_savmap_interfaces/lib:/home/pi/cartographer_ws2/install/yahboom_msgs/lib:/home/pi/cartographer_ws2/install/yahboom_image_publisher_c/lib:/home/pi/cartographer_ws2/install/yahboom_color_identify_interfaces/lib:/home/pi/cartographer_ws2/install/yahboom_attitude_record_interfaces/lib:/home/pi/cartographer_ws2/install/xgo_image_publisher_c/lib:/home/pi/cartographer_ws2/install/vanjee_msgs/lib:/home/pi/cartographer_ws2/install/usb_camera_driver/lib:/home/pi/cartographer_ws2/install/image_color_lab/lib:/home/pi/cartographer_ws2/install/cartographer_ros_msgs/lib:/usr/lib/aarch64-linux-gnu/gazebo-11/plugins:/opt/ros/foxy/opt/yaml_cpp_vendor/lib:/opt/ros/foxy/opt/rviz_ogre_vendor/lib:/opt/ros/foxy/lib/aarch64-linux-gnu:/opt/ros/foxy/lib', 'HOME': '/home/pi', 'OLDPWD': '/home/pi/cartographer_ws2/src', 'DESKTOP_SESSION': 'ubuntu', 'NO_PROXY': 'localhost,127.0.0.0/8,::1', 'ROS_PYTHON_VERSION': '3', 'GNOME_SHELL_SESSION_MODE': 'ubuntu', 'GTK_MODULES': 'gail:atk-bridge', 'MANAGERPID': '1443', 'DBUS_STARTER_BUS_TYPE': 'session', 'DBUS_SESSION_BUS_ADDRESS': 'unix:path=/run/user/1000/bus,guid=04a0f0ad1c29aabf2178528a66137026', 'COLORTERM': 'truecolor', 'IM_CONFIG_PHASE': '1', 'COLCON_PREFIX_PATH': '/home/pi/cartographer_ws2/install', 'ROS_DISTRO': 'foxy', 'LOGNAME': 'pi', 'JOURNAL_STREAM': '9:35921', '_': '/usr/bin/colcon', 'ROS_VERSION': '2', 'PKG_CONFIG_PATH': '/home/pi/cartographer_ws2/install/cartographer/lib/aarch64-linux-gnu/pkgconfig:/home/pi/cartographer_ws2/install/cartographer/lib/pkgconfig', 'XDG_SESSION_CLASS': 'user', 'USERNAME': 'pi', 'TERM': 'xterm-256color', 'GNOME_DESKTOP_SESSION_ID': 'this-is-deprecated', 'ROS_LOCALHOST_ONLY': '0', 'WINDOWPATH': '2', 'PATH': '/home/pi/cartographer_ws2/install/oradar_lidar/bin:/home/pi/cartographer_ws2/install/cartographer/bin:/opt/ros/foxy/bin:/home/pi/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin', 'SESSION_MANAGER': 'local/yahboom:@/tmp/.ICE-unix/1753,unix/yahboom:/tmp/.ICE-unix/1753', 'INVOCATION_ID': '5eb179def2bc444aa552b5e990cf08af', 'XDG_MENU_PREFIX': 'gnome-', 'GNOME_TERMINAL_SCREEN': '/org/gnome/Terminal/screen/f750f205_df20_40d3_b3db_c87ed9563a85', 'XDG_RUNTIME_DIR': '/run/user/1000', 'DISPLAY': ':0', 'LANG': 'en_US.UTF-8', 'XDG_CURRENT_DESKTOP': 'ubuntu:GNOME', 'XMODIFIERS': '@im=ibus', 'XDG_SESSION_DESKTOP': 'ubuntu', 'XAUTHORITY': '/run/user/1000/gdm/Xauthority', 'LS_COLORS': 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:', 'GNOME_TERMINAL_SERVICE': ':1.88', 'SSH_AUTH_SOCK': '/run/user/1000/keyring/ssh', 'ROS_DOMAIN_ID': '16', 'AMENT_PREFIX_PATH': 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'SHELL': '/bin/bash', 'QT_ACCESSIBILITY': '1', 'GDMSESSION': 'ubuntu', 'yahboomcar_MODEL': 'waffle_pi', 'LESSCLOSE': '/usr/bin/lesspipe %s %s', 'GPG_AGENT_INFO': '/run/user/1000/gnupg/S.gpg-agent:0:1', 'QT_IM_MODULE': 'ibus', 'PWD': '/home/pi/cartographer_ws2/build/mycamera', 'LC_ALL': 'en_US.UTF-8', 'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/etc/xdg', 'DBUS_STARTER_ADDRESS': 'unix:path=/run/user/1000/bus,guid=04a0f0ad1c29aabf2178528a66137026', 'XDG_DATA_DIRS': '/usr/share/ubuntu:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop', 'PYTHONPATH': '/home/pi/cartographer_ws2/install/mycamera/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_xgo_odom/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_web_savmap_interfaces/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_visual/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_set_height/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_set_attitude_record/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_qrcode_tracking/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_msgs/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_mediapipe/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_laser/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_image_publisher_c/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_image_compress/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_gait/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_dog_joint_state/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_description/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_ctrl/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_color_tracking/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_color_staus_redis/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_color_status_redis/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_color_identify_server/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_color_identify_interfaces/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_bringup/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_base/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_attitude_record_interfaces/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/yahboom_app_save_map/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_set_height/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_set_attitude_record/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_qrcode_tracking/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_image_publisher_c/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_image_compress/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_gait/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_description/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_color_tracking/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_color_staus_redis/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_color_status_redis/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/xgo_bringup/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/wit_ros2_imu/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/voice_xgo_ctrl_run/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/vanjee_msgs/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/urdf_tutorial_r2d2/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/tf_publisher/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/mycamera/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/image_color_lab/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/cartographer_ros_msgs/lib/python3.8/site-packages:/home/pi/cartographer_ws2/install/bringup/lib/python3.8/site-packages:/opt/ros/foxy/lib/python3.8/site-packages', 'COLCON': '1', 'VTE_VERSION': '6003', 'CMAKE_PREFIX_PATH': 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'shell': False}
[5.058272] (-) TimerEvent: {}
[5.165494] (-) TimerEvent: {}
[5.266156] (-) TimerEvent: {}
[5.367030] (-) TimerEvent: {}
[5.467761] (-) TimerEvent: {}
[5.568443] (-) TimerEvent: {}
[5.669285] (-) TimerEvent: {}
[5.770003] (-) TimerEvent: {}
[5.870716] (-) TimerEvent: {}
[5.971426] (-) TimerEvent: {}
[6.072260] (-) TimerEvent: {}
[6.172885] (-) TimerEvent: {}
[6.273571] (-) TimerEvent: {}
[6.374229] (-) TimerEvent: {}
[6.474875] (-) TimerEvent: {}
[6.575499] (-) TimerEvent: {}
[6.676134] (-) TimerEvent: {}
[6.751567] (mycamera) StdoutLine: {'line': b'running egg_info\n'}
[6.754022] (mycamera) StdoutLine: {'line': b'writing ../../build/mycamera/mycamera.egg-info/PKG-INFO\n'}
[6.756111] (mycamera) StdoutLine: {'line': b'writing dependency_links to ../../build/mycamera/mycamera.egg-info/dependency_links.txt\n'}
[6.756998] (mycamera) StdoutLine: {'line': b'writing entry points to ../../build/mycamera/mycamera.egg-info/entry_points.txt\n'}
[6.757713] (mycamera) StdoutLine: {'line': b'writing requirements to ../../build/mycamera/mycamera.egg-info/requires.txt\n'}
[6.758323] (mycamera) StdoutLine: {'line': b'writing top-level names to ../../build/mycamera/mycamera.egg-info/top_level.txt\n'}
[6.776268] (-) TimerEvent: {}
[6.876999] (-) TimerEvent: {}
[6.922696] (mycamera) StdoutLine: {'line': b"reading manifest file '../../build/mycamera/mycamera.egg-info/SOURCES.txt'\n"}
[6.927013] (mycamera) StdoutLine: {'line': b"writing manifest file '../../build/mycamera/mycamera.egg-info/SOURCES.txt'\n"}
[6.927837] (mycamera) StdoutLine: {'line': b'running build\n'}
[6.928418] (mycamera) StdoutLine: {'line': b'running build_py\n'}
[6.930533] (mycamera) StdoutLine: {'line': b'running install\n'}
[6.935534] (mycamera) StdoutLine: {'line': b'running install_lib\n'}
[6.944879] (mycamera) StdoutLine: {'line': b'running install_data\n'}
[6.947850] (mycamera) StdoutLine: {'line': b'running install_egg_info\n'}
[6.958968] (mycamera) StdoutLine: {'line': b"removing '/home/pi/cartographer_ws2/install/mycamera/lib/python3.8/site-packages/mycamera-0.0.0-py3.8.egg-info' (and everything under it)\n"}
[6.960455] (mycamera) StdoutLine: {'line': b'Copying ../../build/mycamera/mycamera.egg-info to /home/pi/cartographer_ws2/install/mycamera/lib/python3.8/site-packages/mycamera-0.0.0-py3.8.egg-info\n'}
[6.965611] (mycamera) StdoutLine: {'line': b'running install_scripts\n'}
[6.977118] (-) TimerEvent: {}
[7.048514] (mycamera) StdoutLine: {'line': b'Installing t_pub script to /home/pi/cartographer_ws2/install/mycamera/lib/mycamera\n'}
[7.050415] (mycamera) StdoutLine: {'line': b'Installing t_sub script to /home/pi/cartographer_ws2/install/mycamera/lib/mycamera\n'}
[7.051348] (mycamera) StdoutLine: {'line': b'Installing topic_camera_pub script to /home/pi/cartographer_ws2/install/mycamera/lib/mycamera\n'}
[7.052274] (mycamera) StdoutLine: {'line': b'Installing topic_camera_sub script to /home/pi/cartographer_ws2/install/mycamera/lib/mycamera\n'}
[7.055151] (mycamera) StdoutLine: {'line': b"writing list of installed files to '/home/pi/cartographer_ws2/build/mycamera/install.log'\n"}
[7.077437] (-) TimerEvent: {}
[7.162148] (mycamera) CommandEnded: {'returncode': 0}
[7.177644] (-) TimerEvent: {}
[7.264252] (mycamera) JobEnded: {'identifier': 'mycamera', 'rc': 0}
[7.267466] (-) EventReactorShutdown: {}

                  2.文件目录结构信息：

                  mycamera
|---mycamera 
|      |--- __init__.py
|---package.xml
|---resource
|      |---mycamera
|---setup.cfg
|---setup.py
|---test
|      |---test_copyright.py
|      |---test_flake8.py
|      |---test_pep257.py
|---topic_camera_pub.py
|---topic_camera_sub.py
|---t_pub.py
|---t_sub.py
                  1 条回复 最后回复 回复 引用 0
                  • 24250049362
                    PEGASUS @小鱼
                    最后由 2425004936 编辑

                    @小鱼 小鱼，问题解决了，问题真的出现在文件目录结构上面，应该把t_pub这些代码放在/src/mycamera/mycarema下面，我之前是直接放在/src/mycamera下面的。这个问题确实很细节

                    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 @2425004936
                      最后由 编辑

                      @2425004936 所以才要求尽可能的提供更多信息，如果你一开始就把目录结构，每个相关的代码指令都给出来，一眼就可以给出你答案。

                      这里说的colcon build 日志指的是输入 colcon build 后，终端的打印内容。

                      最后感谢再次你的提问，希望能够帮助更多小伙伴。

                      小鱼 ROS 2 新书上线！书籍购买链接： https://m.tb.cn/h.gFDBx39
                      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
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