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### epos_hardware_node can't find parameters

Hey, i tryed to get the epos_hardware package ti work. I have the right parameter in the yaml file and if i started the launch file directly with roslaunch mrd.launch it initalized the motors and I can send with the velocity commad the velocity to one motor.

But when i wnat to start it with the epos_hardware_node like it is told at the wiki I get

ae@AErobotNUC:~$rosrun epos_hardware epos_hardware_node actuator_right [ INFO] [1475145806.123784737]: Loading EPOS: actuator_right [ERROR] [1475145806.133245540]: You must specify an actuator name [ERROR] [1475145806.135072354]: You must specify a serial number [ERROR] [1475145806.137558224]: You must specify an operation mode [ INFO] [1475145806.137672590]: [ INFO] [1475145806.230669194]: Waiting for robot_description  I think that the problem is that the node doesn't get the parameter and so i tryed to start first the launch and then the node i get his ae@AErobotNUC:~$ rosrun epos_hardware epos_hardware_node left