@小鱼 编译其他功能包好像没出现类似的

@254944954 大佬 请问是啥原因啊 我也有您这个问题

@1051816350 这样用的原因是因为希望使用buildroot构建的根文件系统中可以直接运行自己的ros2项目，项目需要使用cv_bridge功能包，但是buildroot中没有安装编译器的环境，因此希望在x86架构下交叉编译。

@3317761430 佬，你是使用的交叉编译的cv_bridge功能包嘛？

@小鱼
鱼，用这个好像因为内核不是amd的不行，我是arm64架构的

orangepi@orangepi5plus:~/桌面$ sudo docker run -it --rm -v /dev:/dev -v /dev/shm:/dev/shm --privileged --net=host registry.cn-hangzhou.aliyuncs.com/fishros/micro-ros-agent:$ROS_DISTRO udp4 --port 8888 -v6 WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested exec /bin/sh: exec format error

@3240806419 我也是遇到同样的问题，好像最关键点在于里程计。我也一直没有解决。在更换房间后也是同样的问题。并且对于地图中的仿真小车只能前进和后退不能够旋转。

@591259845

@591259845 在 [FishBot教程] 9.0.6. 雷达驱动及建图测试 中说：

@小鱼 JI就是正常的win11+wsl2+Ubuntu22.04+ROS2 humble，但是我WSL2用的是新版本推荐的镜像网络不是桥接网络，我有时间试下还是用桥接网络行不行。

用回桥接网络就好了。。。。

@1634769990 你解决了吗

@小伊 Traceback (most recent call last):
File "/opt/ros/humble/local/lib/python3.10/dist-packages/xacro/init.py", line 1012, in parse
inp = f = open(filename)
FileNotFoundError: [Errno 2] No such file or directory: '/home/phx/chapt7/ros2bookcode/chapt6/chapt6_ws/src/fishbot_description/urdf/first_robot.xacro'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/ros/humble/local/lib/python3.10/dist-packages/xacro/init.py", line 1119, in _process
doc = process_file(input_file_name, **opts)
File "/opt/ros/humble/local/lib/python3.10/dist-packages/xacro/init.py", line 1096, in process_file
doc = parse(None, input_file_name)
File "/opt/ros/humble/local/lib/python3.10/dist-packages/xacro/init.py", line 1016, in parse
raise XacroException(e.strerror + ": " + e.filename, exc=e)
xacro.XacroException: No such file or directory: /home/phx/chapt7/ros2bookcode/chapt6/chapt6_ws/src/fishbot_description/urdf/first_robot.xacro [Errno 2] No such file or directory: '/home/phx/chapt7/ros2bookcode/chapt6/chapt6_ws/src/fishbot_description/urdf/first_robot.xacro'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/ros/humble/bin/xacro", line 33, in <module>
sys.exit(load_entry_point('xacro==2.0.8', 'console_scripts', 'xacro')())
File "/opt/ros/humble/local/lib/python3.10/dist-packages/xacro/init.py", line 1171, in main
_process(input_file_name, vars(opts))
File "/opt/ros/humble/local/lib/python3.10/dist-packages/xacro/init.py", line 1124, in _process
except xml.parsers.expat.ExpatError as e:
AttributeError: module 'xml' has no attribute 'parsers'

我之前因为误删了一些ros模块导致这个现象。
后来重装了一遍：sudo apt install ros-humble-rosbridge-server 就解决了

@2075605318 激光雷达装在摄像头上面啊，而且我的是pro，不大

@1117 如果你遇到其他问题也可以在这个贴子上回复。我当时也遇到了几个编译问题。

@1117 还是无法和agent建立连接，micro_ros_agent是运行了的