Joe, > Now I try this tutorial Coding a realtime Cartesian controller with > KDL(http://www.ros.org/wiki/pr2_mechanism/Tutorials/Coding%20a%20realtime%20Cartesian%20controller%20with%20KDL), > but when I compiled the source code, it always gives me these errors: The tutorial code did indeed not compile any more. I just updated the wiki, and it should work again on Boxturtle. Wim -- -- Wim Meeussen Willow Garage Inc.