To visualize the pr2 in rviz, you either need to connect to a real pr2 robot, or you need to run the pr2 in a simulator (rviz only visualizes the robot, it does not simulate it). Take a look at the pr2_gazebo package on the ros wiki. Wim On Fri, Sep 3, 2010 at 7:50 PM, beepbeep wrote: > > Hello, > > I've just installed ROS and Rviz on Ubuntu 10.04, on both 64 bit and (by > VMware) 32 bit. > When I start Rviz and try to add a Robot Model, I get the following error in > the Displays box: > > URDF            |           Parameter [robot_description] does not exist, > and was not found by searchParam() > > Isn't it supposed to load a default PR2 robot model, as per the tutorials on > youtube? > How do I set this right? > > Thanks. > -- > View this message in context: http://ros-users.122217.n3.nabble.com/Error-message-in-Rviz-tp1415889p1415889.html > Sent from the ROS-Users mailing list archive at Nabble.com. > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users > -- -- Wim Meeussen Willow Garage Inc.