PydanticSchemaGenerationError for class starlette.requests.Request

[Mark-Reiser]

Hi,

I did a fresh install via git clone and then install venv. However, within the web UI I can´t press any button.

There always comes the following error -- please help:

20:25:05-475127 INFO Kohya_ss GUI version: v24.1.6 20:25:06-124442 INFO Submodule initialized and updated. 20:25:06-128434 INFO nVidia toolkit detected 20:25:08-140996 INFO Torch 2.1.2+cu118 20:25:08-162538 INFO Torch backend: nVidia CUDA 11.8 cuDNN 8905 20:25:08-165540 INFO Torch detected GPU: NVIDIA GeForce RTX 4090 VRAM 24564 Arch (8, 9) Cores 128 20:25:08-171524 INFO Python version is 3.10.11 (tags/v3.10.11:7d4cc5a, Apr 5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)] 20:25:08-174893 INFO Verifying modules installation status from requirements_pytorch_windows.txt... 20:25:08-177885 INFO Verifying modules installation status from requirements_windows.txt... 20:25:08-180876 INFO Verifying modules installation status from requirements.txt... 20:25:17-088963 INFO headless: False 20:25:17-143523 INFO Using shell=True when running external commands... Running on local URL: http://127.0.0.1:7860

To create a public link, set share=True in launch(). ERROR: Exception in ASGI application Traceback (most recent call last): File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic\type_adapter.py", line 279, in _init_core_attrs self._core_schema = _getattr_no_parents(self._type, 'pydantic_core_schema') File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic\type_adapter.py", line 121, 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 "E:\SD\kohya\kohya_ss\venv\lib\site-packages\uvicorn\protocols\http\h11_impl.py", line 406, in run_asgi result = await app( # type: ignore[func-returns-value] File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\uvicorn\middleware\proxy_headers.py", line 70, in call return await self.app(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\fastapi\applications.py", line 1054, in call await super().call(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\applications.py", line 113, in call await self.middleware_stack(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\middleware\errors.py", line 187, in call raise exc File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\middleware\errors.py", line 165, in call await self.app(scope, receive, _send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\gradio\route_utils.py", line 720, in call await self.simple_response(scope, receive, send, request_headers=headers) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\gradio\route_utils.py", line 736, in simple_response await self.app(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\middleware\exceptions.py", line 62, in call await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette_exception_handler.py", line 62, in wrapped_app raise exc File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette_exception_handler.py", line 51, in wrapped_app await app(scope, receive, sender) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\routing.py", line 715, in call await self.middleware_stack(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\routing.py", line 735, in app await route.handle(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\routing.py", line 288, in handle await self.app(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\routing.py", line 76, in app await wrap_app_handling_exceptions(app, request)(scope, receive, send) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette_exception_handler.py", line 62, in wrapped_app raise exc File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette_exception_handler.py", line 51, in wrapped_app await app(scope, receive, sender) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\starlette\routing.py", line 73, in app response = await f(request) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\fastapi\routing.py", line 291, in app solved_result = await solve_dependencies( File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\fastapi\dependencies\utils.py", line 639, in solve_dependencies ) = await request_body_to_args( # body_params checked above File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\fastapi\dependencies\utils.py", line 810, in request_body_to_args fields_to_extract = get_model_fields(firstfield.type) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\fastapi_compat.py", line 283, in get_model_fields return [ File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\fastapi_compat.py", line 284, in ModelField(field_info=field_info, name=name) File "", line 6, in init File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\fastapi_compat.py", line 109, in post_init self._type_adapter: TypeAdapter[Any] = TypeAdapter( File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic\type_adapter.py", line 266, in init__ self._init_core_attrs(rebuild_mocks=False) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic\type_adapter.py", line 144, in wrapped return func(self, *args, **kwargs) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic\type_adapter.py", line 286, in _init_core_attrs self._core_schema = _get_schema(self._type, config_wrapper, parent_depth=self._parent_depth) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic\type_adapter.py", line 104, in _get_schema schema = gen.generateschema(type) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 655, in generate_schema schema = self._generate_schema_inner(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 908, in _generate_schema_inner return self._annotated_schema(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 2025, in _annotated_schema schema = self._apply_annotations(source_type, annotations) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 2104, in _apply_annotations schema = get_inner_schema(source_type) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_schema_generation_shared.py", line 83, in call schema = self._handler(source_type) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 2186, in new_handler schema = metadata_get_schema(source, get_inner_schema) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 2182, in lambda source, handler: handler(source) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_schema_generation_shared.py", line 83, in call schema = self._handler(source_type) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 2085, in inner_handler schema = self._generate_schema_inner(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 929, in _generate_schema_inner return self.match_type(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 1029, in match_type return self._match_generic_type(obj, origin) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 1058, in _match_generic_type return self._union_schema(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 1378, in _union_schema choices.append(self.generate_schema(arg)) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 655, in generate_schema schema = self._generate_schema_inner(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 929, in _generate_schema_inner return self.match_type(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-packages\pydantic_internal_generate_schema.py", line 1038, in match_type return self._unknown_type_schema(obj) File "E:\SD\kohya\kohya_ss\venv\lib\site-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

[xcrashdayx]

can confirm same here. fresh install from 5th sept 20:00

[Websteria]

Same exact thing.

[RayHell]

+1

[cobanov]

It's temporary solution but, you can modify the requirements.txt file to downgrade the gradio package to version 3.50.2.

gradio==3.50.2

[Websteria]

That works for now. Thank you!!!

[DanielCurtiss]

I was stuck for two hours. cobanov`s solution was the only one to work

[FurkanGozukara]

It's temporary solution but, you can modify the requirements.txt file to downgrade the gradio package to version 3.50.2.

gradio==3.50.2

i made better one fast api 0.111.0 at my auto installer :D

[PheonixAi420]

It's temporary solution but, you can modify the requirements.txt file to downgrade the gradio package to version 3.50.2.

gradio==3.50.2

Wow yeah this quick fix works. I have been thinking all day it was me having an issue. Thanks!!

[bmaltais]

It's temporary solution but, you can modify the requirements.txt file to downgrade the gradio package to version 3.50.2.

gradio==3.50.2

This is too old a release to even think of rolling back. So the issue is caused by a fastapi change?

[phillipxkang]

It's temporary solution but, you can modify the requirements.txt file to downgrade the gradio package to version 3.50.2. gradio==3.50.2

This is too old a release to even think of rolling back. So the issue is caused by a fastapi change?

@bmaltais I fixed this by pinning gradio to 4.43.0

[MasterRuma]

It's temporary solution but, you can modify the requirements.txt file to downgrade the gradio package to version 3.50.2.

gradio==3.50.2

thanks! it works!

[henryruhs]

Use latest gradio==4.43.0

see changelog: https://github.com/gradio-app/gradio/blob/main/CHANGELOG.md#4430