the action server failed to start: robomaster_msgs.action.PlaySound, "play"

[UserName-wang]

the speaker.py: cmd_sound cannot play the wav file. I tried demo1.wav. the below code skipped msg.file. just only passed three parameters to the function play: self.play(sound_id=msg.sound_id, times=msg.times, control=msg.control) by using these new code robomaster s1 can play a wav file: if msg.file and msg.control: self.api.play_audio(msg.file).wait_for_completed() else:
self.play(sound_id=msg.sound_id, times=msg.times, control=msg.control) Maybe it's not the best way to play a wav file, Can someone give me any suggestion?

and the action server play didn't start, I only can find /play/_action/cancel_goal in rqt service caller , but the command: ros2 action list can find /play, strange !!!

    **_self._sound_action_server = rclpy.action.ActionServer(
        node, robomaster_msgs.action.PlaySound, "play", self.execute_play_sound,
        goal_callback=self.new_speaker_goal_callback,
        cancel_callback=self.cancel_callback, callback_group=cbg)_**