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
See mit-ros-pkg (scroll down to Section 4).
Wiki: mit-ros-pkg-sandbox (last edited 2011-05-10 19:08:07 by JennyBarry)