runtime error

/home/user/.local/lib/python3.8/site-packages/gradio/inputs.py:257: UserWarning: Usage of gradio.inputs is deprecated, and will not be supported in the future, please import your component from gradio.components warnings.warn( /home/user/.local/lib/python3.8/site-packages/gradio/deprecation.py:40: UserWarning: `optional` parameter is deprecated, and it has no effect warnings.warn(value) /home/user/.local/lib/python3.8/site-packages/gradio/blocks.py:528: UserWarning: Cannot load grass. Caught Exception: The space grass does not exist warnings.warn(f"Cannot load {theme}. Caught Exception: {str(e)}") Traceback (most recent call last): File "app.py", line 64, in <module> iface = gr.Interface(fn=greet, inputs=gr.inputs.Image(),title="Detect the famous avengers filmstars", description="Choose any one or multiple avengers casts from images of robert_downey_jr, chris_hemsworth, chris_evans, mark_ruffalo or scarlett_johansson ", outputs="text", theme="grass") File "/home/user/.local/lib/python3.8/site-packages/gradio/interface.py", line 456, in __init__ self.render_article() File "/home/user/.local/lib/python3.8/site-packages/gradio/blocks.py", line 1200, in __exit__ self.config = self.get_config_file() File "/home/user/.local/lib/python3.8/site-packages/gradio/blocks.py", line 1176, in get_config_file "input": list(block.input_api_info()), # type: ignore File "/home/user/.local/lib/python3.8/site-packages/gradio_client/serializing.py", line 41, in input_api_info return (api_info["serialized_input"][0], api_info["serialized_input"][1]) KeyError: 'serialized_input'

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