[ros-users] [Discourse.ros.org] Ros2 topic and ros2 node command problem in MAC
Anis Koubaa
ros.discourse at gmail.com
Fri Jul 20 18:17:26 UTC 2018
Hi
I installed ROS2 on MAC and I run talker/listener application and both worked fine, but I found this warning (although it worked fine).
> Aniss-MacBook-Pro-3:~ akoubaa$ ros2 run demo_nodes_cpp listener
> Failed to load entry point 'launch': No module named 'rclpy._rclpy'
> Failed to load entry point 'echo': No module named 'rclpy._rclpy'
Here is a screenshot
![21%20PM|690x243](upload://xone0Pzr7xPst1rGB2GO1lyYgkz.png)
Then, I tried the commands
ros2 node list
and
ros2 topic list
and here there was serious problem as shown in the following two pictures
![21%20PM%202|690x379](upload://jGFgITOUM2qqcZgSQ6Gjr4XhoMm.png)![05%20PM|690x346](upload://uqH9Q00hykL40A9kLBhC2pU2jmP.jpg)
Is there any means to fix the problem?
Thanks
Anis
ROS Course for Beginners
https://www.udemy.com/ros-essentials/?couponCode=ROSDISCOURSE1
---
[Visit Topic](https://discourse.ros.org/t/ros2-topic-and-ros2-node-command-problem-in-mac/5423/1) or reply to this email to respond.
More information about the ros-users
mailing list