The full warning is WARNING: Invalid URL 'C:/Users/xxxxx/OneDrive/Documents/my_Webots_learning/controllers/autonomous_vehicle/'. Sounds must be in '.mp3' or '.wav' format. WARNING: MyMicro_Car "vehicle(1)" > Speaker "engine_speaker": Impossible to play ''. Make sure the file format is supported (8 or 16 bits, mono or stereo wave).
I have made my own vehicle proto from the Car robot and use the autonomous vehicle controller. Everything works for the most part, I am driving manually until I can learn to program the autonomous behavior, but this warning fills the console repeatedly and no sound is played. I don't think I have altered anything relating to the engine speaker, but I can't figure out where the speaker file is specified. It is not in the Car proto nor the autonomous vehicle controller as far as I can find. I do not needs sounds, just want the warning to stop.
Thanks in advance