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Hi Yassine,

Not sure if this is still valid for you, but I experienced the same issue with the ros library in Node red. I was not able to get it to work, but figured out how to directly use the websocket nodes in Node red to circumvent the issue and establish communication with ROS.

I have described the steps here :

https://docs.google.com/document/d/1gT4Kf7K1vpzXAh4ZyztGuWz4l7bf2VjJVI7wQ9u81rc/edit?usp=sharing

Because apparently there is a rule that you cannot include images in your answer when you have less then 5 points? ( I do not see how this rule is contributing to share knowledge... )