How to upload local file when call space api via gradio_client

Spaces
1

I defined two gr.File component as input in space, then used the below demo gradio_client code to request space as API

from gradio_client import Client

client = Client('space name', hf_token='...',serialize=False)
result = client.predict(
				"/tmp/video.mp4",	# str (filepath or URL to file)
								in 'Video or Image' File component
				"/tmp/audio.mp3",	# str (filepath or URL to file)
								in 'Audio' File component
				fn_index=0
)
print(result)

Error raised on local:

Traceback (most recent call last):
  File "/Users/taoluo/Workspace/lorne/gradio-lipsync-wav2lip/gradio_api.py", line 6, in <module>
    result = client.predict(
  File "/Users/taoluo/Workspace/lorne/gradio-lipsync-wav2lip/venv/lib/python3.9/site-packages/gradio_client/client.py", line 305, in predict
    return self.submit(*args, api_name=api_name, fn_index=fn_index).result()
  File "/Users/taoluo/Workspace/lorne/gradio-lipsync-wav2lip/venv/lib/python3.9/site-packages/gradio_client/client.py", line 1456, in result
    return super().result(timeout=timeout)
  File "/opt/homebrew/Cellar/python@3.9/3.9.18/Frameworks/Python.framework/Versions/3.9/lib/python3.9/concurrent/futures/_base.py", line 446, in result
    return self.__get_result()
  File "/opt/homebrew/Cellar/python@3.9/3.9.18/Frameworks/Python.framework/Versions/3.9/lib/python3.9/concurrent/futures/_base.py", line 391, in __get_result
    raise self._exception
  File "/opt/homebrew/Cellar/python@3.9/3.9.18/Frameworks/Python.framework/Versions/3.9/lib/python3.9/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/Users/taoluo/Workspace/lorne/gradio-lipsync-wav2lip/venv/lib/python3.9/site-packages/gradio_client/client.py", line 1126, in _inner
    predictions = _predict(*data)
  File "/Users/taoluo/Workspace/lorne/gradio-lipsync-wav2lip/venv/lib/python3.9/site-packages/gradio_client/client.py", line 1156, in _predict
    raise ValueError(result["error"])
ValueError: None

And error also raised in space contianer log

Traceback (most recent call last):
  File "/home/user/.pyenv/versions/3.8.18/lib/python3.8/site-packages/gradio/routes.py", line 488, in run_predict
    output = await app.get_blocks().process_api(
  File "/home/user/.pyenv/versions/3.8.18/lib/python3.8/site-packages/gradio/blocks.py", line 1428, in process_api
    inputs = self.preprocess_data(fn_index, inputs, state)
  File "/home/user/.pyenv/versions/3.8.18/lib/python3.8/site-packages/gradio/blocks.py", line 1245, in preprocess_data
    processed_input.append(block.preprocess(inputs[i]))
  File "/home/user/.pyenv/versions/3.8.18/lib/python3.8/site-packages/gradio/components/file.py", line 218, in preprocess
    return process_single_file(x)
  File "/home/user/.pyenv/versions/3.8.18/lib/python3.8/site-packages/gradio/components/file.py", line 178, in process_single_file
    f["name"],
TypeError: string indices must be integers

Loos like the uploaded file not been processed correctly, How to solve it?

space gradio version: gradio[oauth]==3.40.1 spaces==0.18.0
local gradio_client version: gradio_client==0.4.0