ROS学习笔记报错篇（一）：Publisher与Subscriber两种编程实现中报错解决

最新推荐文章于 2022-04-21 12:56:34 发布

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最新推荐文章于 2022-04-21 12:56:34 发布

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`ImportError: No module named yaml`

$ rosrun learning_topic velocity_publisher.py

回车后报错：

Traceback (most recent call last):
  File "/home/lacyexsale/catkin_ws/src/learning_topic/scripts/velocity_publisher.py", line 10, in <module>
    import rospy
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/__init__.py", line 47, in <module>
    from std_msgs.msg import Header
  File "/opt/ros/noetic/lib/python3/dist-packages/std_msgs/msg/__init__.py", line 1, in <module>
    from ._Bool import *
  File "/opt/ros/noetic/lib/python3/dist-packages/std_msgs/msg/_Bool.py", line 6