Thanks, Eric I remapped the topic /pose to /odom and the nodes p2os and move_base where connected thereby, but still the particles wouldn't appear. No messages where published by amcl in the /particlecloud topic. Here are the two launchfiles used to run the nodes. robot_conf.launch: where "configuracion_de_transformada" is the tf from the base_link to the laser move_base.launch: So I launch the previous 2 launchfiles and then I run rviz. all nodes are run in the way it is told in the tutorial I would appreciate any further help Thanks in advance, Cristóbal -- View this message in context: http://ros-users.122217.n3.nabble.com/rviz-navigation-tutorial-tp2255852p2282748.html Sent from the ROS-Users mailing list archive at Nabble.com.