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]

I just ran across this error - check and make sure that you are specifying the constraint_region_orientation for the PositionConstraint. You need to either give it a valid orientation or if you just want the identity, make sure that constraint_region_orientation.w = 1.0. By default, ROS quaternion messages are initialized to all 0.0 which is an invalid orientation.

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.