Hi, It appears that you haven't launched the rviz configuration associated with this particular tutorial but instead have the configuration associated with a previous tutorial. Try the following command: roslaunch pr2_arm_navigation_tutorials rviz_collision_tutorial_2.launch and you should get the StateValidity topic and the ghosted robot. Let me know if you have other questions. -Gil -- E. Gil Jones (gjones@willowgarage.com) Research Engineer Willow Garage, Inc. 68 Willow Road Menlo Park, CA 94025 650.475.9772 On Wed, Jul 7, 2010 at 3:18 AM, j2eegirl wrote: > > My simulation result is like this : > http://ros-users.122217.n3.nabble.com/file/n948758/Screenshot-1.png > But the tutorial simulation result like this: > http://ros-users.122217.n3.nabble.com/file/n948758/2.jpg > I can't get the ghost robot. I want to know how to revise the fault. Thank > you. > -- > View this message in context: > http://ros-users.122217.n3.nabble.com/How-to-display-the-ghost-robot-in-rviz-tp948554p948758.html > Sent from the ROS-Users mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > ros-users mailing list > ros-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ros-users > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users >