The ROS Wiki is for ROS 1. Are you using ROS 2 (Humble, Iron, or Rolling)? Check out the ROS 2 Project DocumentationPackage specific documentation can be found on index.ros.org
For troubleshooting this package see navigation stacks Troubleshooting page.
Wiki: nav_msgs/Troubleshooting (last edited 2009-10-01 00:48:19 by TullyFoote)