哥你解决了嘛😢 ，我也是这个问题

这个是我根据错误提示一步步试出来的，可以运行

g++ test.cpp \ -I/opt/ros/jazzy/include/rclcpp/ \ -I /opt/ros/jazzy/include/rcl/ \ -I /opt/ros/jazzy/include/rcutils/ \ -I /opt/ros/jazzy/include/rmw \ -I /opt/ros/jazzy/include/rcl_yaml_param_parser/ \ -I /opt/ros/jazzy/include/rosidl_runtime_c \ -I /opt/ros/jazzy/include/rosidl_typesupport_interface \ -I /opt/ros/jazzy/include/rcpputils \ -I /opt/ros/jazzy/include/builtin_interfaces \ -I /opt/ros/jazzy/include/rosidl_runtime_cpp \ -I /opt/ros/jazzy/include/tracetools \ -I /opt/ros/jazzy/include/rcl_interfaces \ -I /opt/ros/jazzy/include/libstatistics_collector \ -I /opt/ros/jazzy/include/statistics_msgs \ -I /opt/ros/jazzy/include/service_msgs \ -I /opt/ros/jazzy/include/type_description_interfaces \ -I /opt/ros/jazzy/include/rosidl_dynamic_typesupport \ -I /opt/ros/jazzy/include/rosidl_typesupport_introspection_cpp \ -L /opt/ros/jazzy/lib/ \ -lrclcpp -lrcutils

@小伊 我执行第三点通信测试，执行节点双方没有收到消息， 我想定位下是否是通信问题，如何通过网络路由和ROS2的日志信息来定位问题呢？ 日志信息在什么位置呢？ 如何定位呢？ 能给个demo吗

@2967230726 大佬请问解决了吗，我也遇到了一样的问题

2025-04-13 14-06-18屏幕截图.png
这是我加入上述代码后的launch文件，可以正常运行

@3107097475 解决了
sudo gedit .bashrc
在最后加上这一句
export IGN_IP=127.0.0.1

@小鱼 xhost + && sudo docker run -it --rm -v /dev:/dev -v /dev/shm:/dev/shm --privileged -v /tmp/.X11-unix:/tmp/.X11-unix --device /dev/snd -e DISPLAY=$DISPLAY -p 8889:8888 registry.cn-hangzhou.aliyuncs.com/fishros/fishbot_laser

或者试试这个命令

@zqq 在 9.0.3主控板固件烧录的过程中出现问题 中说：

2025-03-11 19:05:51 > Serial port /dev/ttyUSB0
2025-03-11 19:05:51 > A fatal error occurred: Could not open /dev/ttyUSB0, the port is busy or doesn't exist.
2025-03-11 19:05:51 > ([Errno 13] could not open port /dev/ttyUSB0: [Errno 13] Permission denied: '/dev/ttyUSB0')
2025-03-11 19:05:51 > Hint: Try to add user into dialout group: sudo usermod -a -G dialout $USER
2025-03-11 19:05:51 > [错误]固件写入失败，请检查日志或重试。。。

权限问题

sudo usermod -a -G dialout $USER

占用：https://fishros.org.cn/forum/topic/1050/ubuntu22-04-ch340系列串口芯片无法识别终极问题解决方案
权限：https://fishros.org.cn/forum/topic/1150/串口usb永久权限设置

@zqq 可以考虑再购置一个路由器，小车无需链接外网