Hi, I'm Eunchul Jeon In South Korea. I want to use amcl package but, there is no subscription for laser scan Attached file is a rxgraph capture image. I received source file in following svn repository and compiled successfully. svn https://code.ros.org/svn/ros-pkg/stacks/navigation/trunk/amcl I appreciate in advance your help. -- ================================================ Eunchul Jeon M.S. Student, Intelligent Systems and Neurobotics lab, Dept. Computer Science, KAIST Science town, Daejeon, 305-701, South Korea TEL: 82 42 350 3580 E-mail: jsharp@kaist.ac.kr, jsharp83@gmail.com Homepage: http://isnl.kaist.ac.kr ================================================