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]

To add a little bit of clarification on item #1:

The navigation stack will work with negative values for coordinates in a given frame depending on the configuration of its costmaps. Is sounds like perhaps your robot is not localized properly, causing the laser sensor to be outside of the specified map. If you're using AMCL, have you made sure to set the "initialpose" of the robot?

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.