Dear all, I recommend having a look on the move_base action server implementation as a reference for how to implement an action server. The problem posted here was due to a wrong implementation of my own action server. Following the move_base implementation I solved the problem with the error messages. Best wishes Christian Am 18.11.2010 18:59, schrieb Christian Verbeek: > Sorry for forgetting my signature at the end of the previous post. That > was me, Christian. > > Regards > Christian > > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users >