Trying to train dataset but getting: [Errno 21] Is a directory: '/'

[c4b4d4]

I'm trying to train my own dataset, but I get stuck on the conversion of images, I'm running the following code:

python3 convert_image_only.py \
--train_directory="/Users/username/Downloads/twina/datasets/faces/" \
--validation_directory="/Users/username/Downloads/twina/datasets/faces/" \
--output_directory="/Users/username/Downloads/twina/datasets/out/" \
--train_shards=8 \
--validation_shards=2 \
--num_threads=2

But I keep getting the following error:

Saving results to /Users/username/Downloads/twina/datasets/out/
Traceback (most recent call last):
  File "convert_image_only.py", line 91, in <module>
    tf.app.run()
  File "/usr/local/lib/python3.7/site-packages/tensorflow/python/platform/app.py", line 40, in run
    _run(main=main, argv=argv, flags_parser=_parse_flags_tolerate_undef)
  File "/usr/local/lib/python3.7/site-packages/absl/app.py", line 300, in run
    _run_main(main, args)
  File "/usr/local/lib/python3.7/site-packages/absl/app.py", line 251, in _run_main
    sys.exit(main(argv))
  File "convert_image_only.py", line 87, in main
    converter.main()
  File "/Users/username/Downloads/twina/datasets/datasets/convert_general_image_data.py", line 307, in main
    shared_info = self._get_shared_info()
  File "/Users/username/Downloads/twina/datasets/datasets/convert_general_image_data.py", line 110, in _get_shared_info
    util_io.touch_folder(shared_info_output_dir)
  File "/Users/username/Downloads/twina/datasets/util_io.py", line 41, in touch_folder
    os.makedirs(dn)
  File "/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/lib/python3.7/os.py", line 221, in makedirs
    mkdir(name, mode)
IsADirectoryError: [Errno 21] Is a directory: '/'