Hi, I have tried too many times now to make the call function work. In example 4.7 I can get the rosservice list working without trouble, seeing the \my_service, but when I try to call it, it returns blank space, as shown here:
(…)
my_service
/robot_state_publisher/get_loggers
/robot_state_publisher/set_logger_level
/rosout/get_loggers
/rosout/set_logger_level
/service_server/get_loggers
/service_server/set_logger_level
user:~$ rosservice call /my_service
user:~$
user:~$
What am I doing wrong?