cannot choose or create path

/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/venv/lib/python3.10/site-packages/librosa/util/files.py:10: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
from pkg_resources import resource_filename
2026-01-09 16:22:37 | INFO | configs.config | No supported Nvidia GPU found
2026-01-09 16:22:37 | INFO | configs.config | overwrite v1/32k.json
2026-01-09 16:22:37 | INFO | configs.config | overwrite v1/40k.json
2026-01-09 16:22:37 | INFO | configs.config | overwrite v1/48k.json
2026-01-09 16:22:37 | INFO | configs.config | overwrite v2/48k.json
2026-01-09 16:22:37 | INFO | configs.config | overwrite v2/32k.json
2026-01-09 16:22:37 | INFO | configs.config | overwrite preprocess_per to 3
2026-01-09 16:22:37 | INFO | configs.config | Use cpu instead
2026-01-09 16:22:37 | INFO | configs.config | Half-precision floating-point: False, device: cpu
2026-01-09 16:22:39 | INFO | main | Use Language: en_US
Running on local URL: http://0.0.0.0:7865
Traceback (most recent call last):
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/infer/lib/audio.py", line 40, in load_audio
raise RuntimeError(
RuntimeError: You input a wrong audio path that does not exists, please fix it!
2026-01-09 16:25:14 | WARNING | infer.modules.vc.modules | Traceback (most recent call last):
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/infer/lib/audio.py", line 40, in load_audio
raise RuntimeError(
RuntimeError: You input a wrong audio path that does not exists, please fix it!

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/infer/modules/vc/modules.py", line 165, in vc_single
audio = load_audio(input_audio_path, 16000)
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/infer/lib/audio.py", line 50, in load_audio
raise RuntimeError(f"Failed to load audio: {e}")
RuntimeError: Failed to load audio: You input a wrong audio path that does not exists, please fix it!

Traceback (most recent call last):
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/venv/lib/python3.10/site-packages/gradio/routes.py", line 437, in run_predict
output = await app.get_blocks().process_api(
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/venv/lib/python3.10/site-packages/gradio/blocks.py", line 1349, in process_api
data = self.postprocess_data(fn_index, result["prediction"], state)
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/venv/lib/python3.10/site-packages/gradio/blocks.py", line 1283, in postprocess_data
prediction_value = block.postprocess(prediction_value)
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/venv/lib/python3.10/site-packages/gradio/components.py", line 2586, in postprocess
file_path = self.audio_to_temp_file(
File "/home/datenshi/Retrieval-based-Voice-Conversion-WebUI/venv/lib/python3.10/site-packages/gradio/components.py", line 360, in audio_to_temp_file
temp_dir = Path(dir) / self.hash_bytes(data.tobytes())
AttributeError: 'NoneType' object has no attribute 'tobytes'

Start with infer/lib/audio.py and infer/modules/vc/modules.py, then follow the Gradio audio output traceback in the issue. Reproduce the path-selection failure and compare the missing-path error with the NoneType failure in Gradio postprocessing. Done means the requested path can be chosen or created and the resulting audio flow completes without these errors.