在OS X上安装ROS2 -错误:没有名为'rclpy._rclpy‘的模块

Question

我正在尝试在Mac中安装ros2环境。我为它创建了一个conda env。

我已经安装了conda install -c anaconda sphinx和conda install -c conda-forge sphinx-autodoc-typehints。

我在运行ros2 run demo_nodes_cpp talker时遇到错误

Failed to load entry point 'test': No module named 'rclpy._rclpy'
Failed to load entry point 'launch': No module named 'rclpy._rclpy'
Failed to load entry point 'info': No module named 'rclpy._rclpy'
.
.
.
Failed to load entry point 'list': No module named 'rclpy._rclpy'
Failed to load entry point 'pub': No module named 'rclpy._rclpy'
dyld: Library not loaded: /usr/local/opt/poco/lib/libPocoFoundation.63.dylib
  Referenced from: /Users/linfeng/workspace/ros2_dashing/ros2-osx/lib/librosidl_typesupport_c.dylib
  Reason: image not found

有什么想法吗？提前谢谢你

Answer 1

我通过链接较新安装的poco版本使其正常工作：

ln -s /usr/local/opt/poco/lib/libPocoFoundation.71.dylib /usr/local/opt/poco/lib/libPocoFoundation.63.dylib