Hi, Am 27.12.2010 um 15:37 schrieb Tully Foote: > In your case where did you create the .rosinstall file which has the > 'ros' stack defined? I'm going to call that directory > PATH_TO_PREVIOUS_ROSINSTALL, which I"m guessing in your case is > /home/bjoern/ROS . Oops. I deleted that .rosinstall file because I thought it to be a temporary. Hmm. That probably means I have to reinstall ROS? As a side note, the series of "R2-D2" tutorials in the URDF part of the Wiki seem outdated? The coordinate assignment seems different in my rviz than implied there. Attached is a screenshot of the "05-visual.urdf" file.