Namespace object has no attribute 'infile'

[lalisalala]

Hi, this Error comes up, when I try to run it.
I am pretty new to this, so can anyone help?

Traceback (most recent call last):
File "C:/Users/Lisa/PycharmProjects/audio-to-midi/audio_to_midi/main.py", line 121, in
main()
File "C:/Users/Lisa/PycharmProjects/audio-to-midi/audio_to_midi/main.py", line 69, in main
"{}.mid".format(os.path.basename(args.infile))
AttributeError: 'Namespace' object has no attribute 'infile'

Thank You