When I ran yolov8_node, an error occurred.

[lingxe01]

[INFO] [launch]: All log files can be found below /home/ling/.ros/log/2024-04-16-19-15-59-070741-ling01-27133 [INFO] [launch]: Default logging verbosity is set to INFO [INFO] [yolov8_node-1]: process started with pid [27135] [yolov8_node-1] Traceback (most recent call last): [yolov8_node-1] File "/opt/ros/foxy/lib/python3.8/site-packages/rosidl_generator_py/import_type_support_impl.py", line 46, in import_type_support [yolov8_node-1] return importlib.import_module(module_name, package=pkg_name) [yolov8_node-1] File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module [yolov8_node-1] return _bootstrap._gcd_import(name[level:], package, level) [yolov8_node-1] File "<frozen importlib._bootstrap>", line 1014, in _gcd_import [yolov8_node-1] File "<frozen importlib._bootstrap>", line 991, in _find_and_load [yolov8_node-1] File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked [yolov8_node-1] ModuleNotFoundError: No module named 'yolov8_msg.yolov8_msg_s__rosidl_typesupport_c' [yolov8_node-1] [yolov8_node-1] During handling of the above exception, another exception occurred: [yolov8_node-1] [yolov8_node-1] Traceback (most recent call last): [yolov8_node-1] File "/home/ling/yolo_ws/install/yolov8_main/lib/yolov8_main/yolov8_node", line 11, in <module> [yolov8_node-1] load_entry_point('yolov8-main==0.0.1', 'console_scripts', 'yolov8_node')() [yolov8_node-1] File "/home/ling/yolo_ws/install/yolov8_main/lib/python3.8/site-packages/yolov8_main/yolov8_node.py", line 139, in main [yolov8_node-1] node = Yolov8Node() [yolov8_node-1] File "/home/ling/yolo_ws/install/yolov8_main/lib/python3.8/site-packages/yolov8_main/yolov8_node.py", line 55, in __init__ [yolov8_node-1] self.pub = self.create_publisher(Yolov8InferenceMsg, '/yolov8_inference', 1) [yolov8_node-1] File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/node.py", line 1144, in create_publisher [yolov8_node-1] check_for_type_support(msg_type) [yolov8_node-1] File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/type_support.py", line 29, in check_for_type_support [yolov8_node-1] msg_type.__class__.__import_type_support__() [yolov8_node-1] File "/home/ling/yolo_ws/install/yolov8_msg/lib/python3.11/site-packages/yolov8_msg/msg/_yolov8_inference_msg.py", line 27, in __import_type_support__ [yolov8_node-1] module = import_type_support('yolov8_msg') [yolov8_node-1] File "/opt/ros/foxy/lib/python3.8/site-packages/rosidl_generator_py/import_type_support_impl.py", line 48, in import_type_support [yolov8_node-1] raise UnsupportedTypeSupport(pkg_name) [yolov8_node-1] rosidl_generator_py.import_type_support_impl.UnsupportedTypeSupport: Could not import 'rosidl_typesupport_c' for package 'yolov8_msg' [ERROR] [yolov8_node-1]: process has died [pid 27135, exit code 1, cmd '/home/ling/yolo_ws/install/yolov8_main/lib/yolov8_main/yolov8_node --ros-args -r __node:=yolov8_node --params-file /tmp/launch_params_rxsy50bg --params-file /tmp/launch_params_086brovq --params-file /tmp/launch_params_gxsq5_02 --params-file /tmp/launch_params_j9_qwus8 --params-file /tmp/launch_params_tmp9pr03 -r /image_raw:=/camera/rgb/image_raw'].

[AhmedSaid404]

I am having the same issue can you help!

[BAN2ARU]

I tested it using the Docker image 'nvidia/cuda:11.4.3-cudnn8-devel-ubuntu20.04' and it didn’t produce any errors.
So, after searching online, I found that it might be a Python-related issue.
Are you using Python 3.8?

[lingxe01]

I tested it using the Docker image 'nvidia/cuda:11.4.3-cudnn8-devel-ubuntu20.04' and it didn’t produce any errors. So, after searching online, I found that it might be a Python-related issue. Are you using Python 3.8?

yes，i used python3.8，cuda11.3，ubuntu20.04

[BAN2ARU]

Could you try sudo apt install ros-foxy-rosidl-typesupport-c and sudo apt-get dist-upgrade?
Also, check out this link: ros2/examples#303.
If the issue still isn't resolved, I'll consider sharing the Dockerfile.