Topic: /BlueRov2/servo1/set_pwm etc can not be found.

[lqiangsdut]

Dear patrick:
roslaunch bluerov_ros_playground bluerov2_node.launch bluerov_node_device:=udp:192.168.2.1:14550
roslaunch bluerov_ros_playground control.launch bluerov_node_device:=udp:192.168.2.1:14550
The above two instructions are executed, these topics that /BlueRov2/servo1/set_pwm, /BlueRov2/servo2/set_pwm, /BlueRov2/servo3/set_pwm, /BlueRov2/servo4/set_pwm, /BlueRov2/servo5/set_pwm, /BlueRov2/servo6/set_pwm, /BlueRov2/servo7/set_pwm and /BlueRov2/servo8/set_pwm can not be found by the commander that rostopic list.
Thank you very much!
Best wishes to you!