3.1章节echo 失败
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ubuntu20@ubuntu20:~$ ros2 topic echo /turtle1/pose
Traceback (most recent call last):
File "/opt/ros/foxy/bin/ros2", line 11, in <module>
load_entry_point('ros2cli==0.9.13', 'console_scripts', 'ros2')()
File "/opt/ros/foxy/lib/python3.8/site-packages/ros2cli/cli.py", line 67, in main
rc = extension.main(parser=parser, args=args)
File "/opt/ros/foxy/lib/python3.8/site-packages/ros2topic/command/topic.py", line 41, in main
return extension.main(args=args)
File "/opt/ros/foxy/lib/python3.8/site-packages/ros2topic/verb/echo.py", line 71, in main
return main(args)
File "/opt/ros/foxy/lib/python3.8/site-packages/ros2topic/verb/echo.py", line 86, in main
message_type = get_msg_class(node, args.topic_name, include_hidden_topics=True)
File "/opt/ros/foxy/lib/python3.8/site-packages/ros2topic/api/init.py", line 99, in get_msg_class
msg_class = _get_msg_class(node, topic, include_hidden_topics)
File "/opt/ros/foxy/lib/python3.8/site-packages/ros2topic/api/init.py", line 144, in _get_msg_class
return get_message(message_type)
File "/opt/ros/foxy/lib/python3.8/site-packages/rosidl_runtime_py/utilities.py", line 30, in get_message
raise ValueError("Expected the full name of a message, got '{}'".format(identifier))
ValueError: Expected the full name of a message, got 'turtlesim/msg/Pose'