AttributeError: __pydantic_core_schema__

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ERROR: Exception in ASGI application
Traceback (most recent call last):
File "/usr/local/lib/python3.10/dist-packages/pydantic/type_adapter.py", line 270, in _init_core_attrs
self._core_schema = _getattr_no_parents(self._type, 'pydantic_core_schema')
File "/usr/local/lib/python3.10/dist-packages/pydantic/type_adapter.py", line 112, in _getattr_no_parents
raise AttributeError(attribute)
AttributeError: pydantic_core_schema

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.10/dist-packages/uvicorn/protocols/http/h11_impl.py", line 406, in run_asgi
result = await app( # type: ignore[func-returns-value]
File "/usr/local/lib/python3.10/dist-packages/uvicorn/middleware/proxy_headers.py", line 60, in call
return await self.app(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/fastapi/applications.py", line 1054, in call
await super().call(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/applications.py", line 113, in call
await self.middleware_stack(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/middleware/errors.py", line 187, in call
raise exc
File "/usr/local/lib/python3.10/dist-packages/starlette/middleware/errors.py", line 165, in call
await self.app(scope, receive, _send)
File "/usr/local/lib/python3.10/dist-packages/gradio/route_utils.py", line 695, in call
await self.simple_response(scope, receive, send, request_headers=headers)
File "/usr/local/lib/python3.10/dist-packages/gradio/route_utils.py", line 711, in simple_response
await self.app(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/middleware/exceptions.py", line 62, in call
await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/_exception_handler.py", line 62, in wrapped_app
raise exc
File "/usr/local/lib/python3.10/dist-packages/starlette/_exception_handler.py", line 51, in wrapped_app
await app(scope, receive, sender)
File "/usr/local/lib/python3.10/dist-packages/starlette/routing.py", line 715, in call
await self.middleware_stack(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/routing.py", line 735, in app
await route.handle(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/routing.py", line 288, in handle
await self.app(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/routing.py", line 76, in app
await wrap_app_handling_exceptions(app, request)(scope, receive, send)
File "/usr/local/lib/python3.10/dist-packages/starlette/_exception_handler.py", line 62, in wrapped_app
raise exc
File "/usr/local/lib/python3.10/dist-packages/starlette/exception_handler.py", line 51, in wrapped_app
await app(scope, receive, sender)
File "/usr/local/lib/python3.10/dist-packages/starlette/routing.py", line 73, in app
response = await f(request)
File "/usr/local/lib/python3.10/dist-packages/fastapi/routing.py", line 291, in app
solved_result = await solve_dependencies(
File "/usr/local/lib/python3.10/dist-packages/fastapi/dependencies/utils.py", line 656, in solve_dependencies
) = await request_body_to_args( # body_params checked above
File "/usr/local/lib/python3.10/dist-packages/fastapi/dependencies/utils.py", line 881, in request_body_to_args
fields_to_extract = get_cached_model_fields(first_field.type)
File "/usr/local/lib/python3.10/dist-packages/fastapi/_compat.py", line 657, in get_cached_model_fields
return get_model_fields(model)
File "/usr/local/lib/python3.10/dist-packages/fastapi/_compat.py", line 284, in get_model_fields
return [
File "/usr/local/lib/python3.10/dist-packages/fastapi/_compat.py", line 285, in
ModelField(field_info=field_info, name=name)
File "", line 6, in init
File "/usr/local/lib/python3.10/dist-packages/fastapi/_compat.py", line 110, in post_init
self._type_adapter: TypeAdapter[Any] = TypeAdapter(
File "/usr/local/lib/python3.10/dist-packages/pydantic/type_adapter.py", line 257, in init
self._init_core_attrs(rebuild_mocks=False)
File "/usr/local/lib/python3.10/dist-packages/pydantic/type_adapter.py", line 135, in wrapped
return func(self, *args, **kwargs)
File "/usr/local/lib/python3.10/dist-packages/pydantic/type_adapter.py", line 277, in _init_core_attrs
self._core_schema = _get_schema(self._type, config_wrapper, parent_depth=self._parent_depth)
File "/usr/local/lib/python3.10/dist-packages/pydantic/type_adapter.py", line 95, in get_schema
schema = gen.generate_schema(type)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 655, in generate_schema
schema = self._generate_schema_inner(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 908, in _generate_schema_inner
return self._annotated_schema(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 2028, in _annotated_schema
schema = self._apply_annotations(source_type, annotations)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 2107, in _apply_annotations
schema = get_inner_schema(source_type)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_schema_generation_shared.py", line 83, in call
schema = self._handler(source_type)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 2189, in new_handler
schema = metadata_get_schema(source, get_inner_schema)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 2185, in
lambda source, handler: handler(source)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_schema_generation_shared.py", line 83, in call
schema = self._handler(source_type)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 2088, in inner_handler
schema = self._generate_schema_inner(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 929, in _generate_schema_inner
return self.match_type(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 1029, in match_type
return self._match_generic_type(obj, origin)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 1058, in _match_generic_type
return self._union_schema(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 1378, in _union_schema
choices.append(self.generate_schema(arg))
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 655, in generate_schema
schema = self._generate_schema_inner(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 929, in _generate_schema_inner
return self.match_type(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 1038, in match_type
return self._unknown_type_schema(obj)
File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 558, in _unknown_type_schema
raise PydanticSchemaGenerationError(
pydantic.errors.PydanticSchemaGenerationError: Unable to generate pydantic-core schema for <class 'starlette.requests.Request'>. Set arbitrary_types_allowed=True in the model_config to ignore this error or implement __get_pydantic_core_schema__ on your type to fully support it.

If you got this error by calling handler() within __get_pydantic_core_schema__ then you likely need to call handler.generate_schema(<some type>) since we do not call __get_pydantic_core_schema__ on <some type> otherwise to avoid infinite recursion.

For further information visit https://errors.pydantic.dev/2.9/u/schema-for-unknown-type