ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange

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 strongly suggest you take a in-depth look at the beginner tutorials, especially Understanding ROS Topics and Writing a Simple Publisher and Subscriber (C++) ones.

I can spot at least two mistakes:

The subscriber callback has to based on the correct type (not std_msgs:String but nav_msgs/Odometry)
You have to include the corresponding message header, not gazebo_ros_p3d

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.

Powered by Askbot version 0.10.2