runtime error

None of PyTorch, TensorFlow >= 2.0, or Flax have been found. Models won't be available and only tokenizers, configuration and file/data utilities can be used. None of PyTorch, TensorFlow >= 2.0, or Flax have been found. Models won't be available and only tokenizers, configuration and file/data utilities can be used. Traceback (most recent call last): File "/home/user/app/app.py", line 4, in <module> launch_gradio_demo(HFModelDownloadsTool) File "/usr/local/lib/python3.10/site-packages/transformers/tools/base.py", line 605, in launch_gradio_demo outputs=tool_class.outputs, AttributeError: type object 'HFModelDownloadsTool' has no attribute 'outputs'

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