鱼香ROS社区
    • 版块
    • 最新
    • 未解决
    • 已解决
    • 群组
    • 注册
    • 登录
    紧急通知：禁止一切关于政治&VPN翻墙等话题，发现相关帖子会立马删除封号
     提问前必看的发帖注意事项： 社区问答规则(小鱼个人)更新 | 高质量帖子发布指南

    非oop方法编写一个节点提示找不到rclpy

    已定时 已固定 已锁定 已移动
    动手学ROS2
    ros2 节点创建 动手学ros2
    2
    3
    192
    正在加载更多帖子
    • 从旧到新
    • 从新到旧
    • 最多赞同
    回复
    • 在新帖中回复
    登录后回复
    此主题已被删除。只有拥有主题管理权限的用户可以查看。
    • T
      TsharkYang
      最后由 编辑

      ROS2创建节点日志报错
      问题描述：

      在学习动手学ROS2教程中的3.4章节，使用非oop方法编写一个节点，步骤紧跟教程文档操作，但是还是报错找不到rclpy

      具体细节和上下文：

      环境使用的是ubuntu18，ROS2 dashing python 3.6 以下图片是整个节点创建完成后的截图（已经执行source）：

      88f34ed6-178a-4004-a03b-7ea20206a4b0-image.png
      尝试运行节点：ros2 run village_li li4_node 出现报错找不到模组rclpy，日志如下：

      (ros2_dashing_env) root@carl:~/town_ws# ros2 run village_li li4_node
Failed to load entry point 'launch': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'info': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'list': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'send_goal': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'show': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'list': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'load': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'standalone': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'types': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'unload': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'start': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'status': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'stop': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'get': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'list': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'nodes': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'set': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'info': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'list': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'delete': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'get': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'list': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'set': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'create_key': cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/**init**.py)
Failed to load entry point 'create_keystore': cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/**init**.py)
Failed to load entry point 'create_permission': cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/**init**.py)
Failed to load entry point 'distribute_key': cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/**init**.py)
Failed to load entry point 'generate_artifacts': cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/**init**.py)
Failed to load entry point 'generate_policy': cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/**init**.py)
Failed to load entry point 'list_keys': cannot import name 'etree' from 'lxml' (/usr/lib/python3/dist-packages/lxml/**init**.py)
Failed to load entry point 'call': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'list': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'bw': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'delay': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'echo': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'hz': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'info': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'list': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Failed to load entry point 'pub': No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions
Traceback (most recent call last):
File "/root/town_ws/install/village_li/lib/village_li/li4_node", line 11, in <module>
load_entry_point('village-li==0.0.0', 'console_scripts', 'li4_node')()
File "/usr/lib/python3/dist-packages/pkg_resources/**init**.py", line 480, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python3/dist-packages/pkg_resources/**init**.py", line 2693, in load_entry_point
return ep.load()
File "/usr/lib/python3/dist-packages/pkg_resources/**init**.py", line 2324, in load
return self.resolve()
File "/usr/lib/python3/dist-packages/pkg_resources/**init**.py", line 2330, in resolve
module = **import**(self.module_name, fromlist=['**name**'], level=0)
File "/root/town_ws/install/village_li/lib/python3.8/site-packages/village_li/li4.py", line 2, in <module>
from rclpy.node import Node
File "/opt/ros/dashing/lib/python3.6/site-packages/rclpy/node.py", line 39, in <module>
from rclpy.client import Client
File "/opt/ros/dashing/lib/python3.6/site-packages/rclpy/client.py", line 22, in <module>
from rclpy.impl.implementation_singleton import rclpy_implementation as _rclpy
File "/opt/ros/dashing/lib/python3.6/site-packages/rclpy/impl/implementation_singleton.py", line 31, in <module>
rclpy_implementation = _import('._rclpy')
File "/opt/ros/dashing/lib/python3.6/site-packages/rclpy/impl/**init**.py", line 22, in _import
return importlib.import_module(name, package='rclpy')
File "/usr/lib/python3.8/importlib/**init**.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named 'rclpy._rclpy'
The C extension '/opt/ros/dashing/lib/python3.6/site-packages/rclpy/_rclpy.cpython-38-x86_64-linux-gnu.so' isn't present on the system. Please refer to '[https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system](https://index.ros.org/doc/ros2/Troubleshooting/Installation-Troubleshooting/#import-failing-without-library-present-on-the-system)' for possible solutions

      尝试过的解决方法：
      排错1：编写脚本查看是否能正常导入rclpy和创建节点，脚本代码如下：

      import sys
import rclpy

print(sys.version)
print(sys.path)
print(rclpy.__file__)

try:
    import rclpy
    from rclpy.node import Node
    print("Successfully imported rclpy and Node.")
except ImportError as e:
    print(f"Failed to import rclpy or Node: {e}")

def main(args=None):
    rclpy.init(args=args)
    try:
        node = Node("test_node")
        print("Successfully created Node.")
    except Exception as e:
        print(f"Failed to create Node: {e}")
    finally:
        rclpy.shutdown()

if __name__ == "__main__":
    main()

      执行结果如下：

      (ros2_dashing_env) root@carl:~/town_ws# python3 env_test.py 
3.6.13 |Anaconda, Inc.| (default, Jun  4 2021, 14:25:59) 
[GCC 7.5.0]
['/root/town_ws', '/opt/ros/dashing/lib/python3.6/site-packages', '/root/anaconda3/envs/ros2_dashing_env/lib/python36.zip', '/root/anaconda3/envs/ros2_dashing_env/lib/python3.6', '/root/anaconda3/envs/ros2_dashing_env/lib/python3.6/lib-dynload', '/root/anaconda3/envs/ros2_dashing_env/lib/python3.6/site-packages']
/opt/ros/dashing/lib/python3.6/site-packages/rclpy/__init__.py
Successfully imported rclpy and Node.
Successfully created Node.
(ros2_dashing_env) root@carl:~/town_ws#

      结果显示能正常导入rclpy and Node并且能创建节点。

      排错2：编写脚本查看环境变量，代码如下：

      echo "Checking if rclpy is installed..."
if pip list | grep -q rclpy; then
  echo "rclpy is installed."
else
  echo "rclpy is not installed. Please install it using 'pip install rclpy'."
fi

echo "Checking PYTHONPATH..."
echo $PYTHONPATH

echo "Testing rclpy import..."
python -c "import rclpy; from rclpy.node import Node; print('rclpy imported successfully')" || echo "Failed to import rclpy"

echo "Sourcing ROS 2 environment..."
source /opt/ros/dashing/setup.bash

echo "Checking ROS environment variables..."
printenv | grep ROS

      执行结果如下：

      (ros2_dashing_env) root@carl:~/town_ws# bash check_ros_env.sh
Checking if rclpy is installed...
ERROR: Pipe to stdout was broken
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='UTF-8'>
BrokenPipeError: [Errno 32] Broken pipe
rclpy is installed.
Checking PYTHONPATH...
/opt/ros/dashing/lib/python3.6/site-packages
Testing rclpy import...
rclpy imported successfully
Sourcing ROS 2 environment...
Checking ROS environment variables...
ROS_VERSION=2
ROS_PYTHON_VERSION=3
ROS_DISTRO=dashing

      本人只会这两种排查方式，排查后仍无法解决问题，请各位大佬指教。

      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 @TsharkYang
        最后由 编辑

        @TsharkYang 跟你的虚拟环境有关系，3.8 应该是ubuntu20的默认版本， 3.6 才是ubuntu18 的系统。

        你可以参考下这个：

        https://fishros.org.cn/forum/topic/554/jupyter新建python3文件终端报错-导入rclpy报错/2

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

        T 1 条回复 最后回复 回复 引用 0
        • T
          TsharkYang @小鱼
          最后由 编辑

          @小鱼 你好，我的虚拟环境是python3.6的，并且我在setup.py中指定了编译版本为3.6，但是编译出来的文件还是3.8的26b7feb2-6547-48f8-a7bb-912b4de0e1f8-image.png

          1 条回复 最后回复 回复 引用 0
          • 第一个帖子
            最后一个帖子
          皖ICP备16016415号-7
          Powered by NodeBB | 鱼香ROS