Hi ROS users, I simply want to connect my PC as a client (with a wifi stick) to Robotino as an AP to run some robotino demos provided with the stack. But the result is always like this: * [ WARN] [1351922165.116894137]: The root link base_link has an inertia specified in the URDF, but KDL does not support a root link with an inertia. As a workaround, you can add an extra dummy link to your URDF. [ERROR] [1351922165.594054747]: [ INFO] [1351922167.593944503]: Disconnected from Robotino* I also checked the connection with Robotino View and it worked to capture camera image or other sensors in Robotino View. But it failed to run/compile robotinoView demo in Eclipse and either with _ROS robotino stacks i.e robotino_node _ The IP I used in robotinoView was used again to launch robotino_node Does launching robotino_node have such trouble? and need much of debuggin or something?? Thank you in advance for any help!! Cheers, Shawn Le