Hi Ugo,
can you show how the service message is filled out and the shadow urdf?
thanks,
John

On May 6, 2011 9:43 AM, "Ugo Cupcic" <ugo@shadowrobot.com> wrote:
> Hi,
>
> I'm trying to use the /gazebo/set_model_configuration service to set a
> starting pause for my arm (as suggested here:
> http://answers.ros.org/question/857/set-revolute-joint-start-angle).
>
> I'm getting the following error:
> gazebo_model canonical body[world] is not the root link[shadowarm_base]!
>
> When I spawn my model, I'm specifying world as the reference_frame though.
> (rosrun gazebo spawn_model -urdf -param robot_description -model
> arm_and_hand -reference_frame world)
>
> Any help greatly appreciated.
>
> Cheers,
>
> Ugo
>
> --
> Ugo Cupcic | Shadow Robot Company | ugo@shadowrobot.com
> Software Engineer | 251 Liverpool Road |
> need a Hand? | London N1 1LX | +44 20 7700 2487
> http://www.shadowrobot.com/hand/ @shadowrobot