Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

Revision history [back]

The error tells you exactly what the problem is

new node registered with same name

This means that you already have another instance of that same node running. When you start another instance the names collide and ROS Master kills the node you're trying to run. If you want to use this node twice, consider using a launch file and giving each instance a unique name.

ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.