[Bug]: WebUI stops working after installing this extension

Is there an existing issue for this?

[x] I have searched the existing issues and checked the recent builds/commits of both this extension and the webui

What happened?

Problems started today when i have installed another model based on Pony Diffusion called AutismMix SDXL but i don't know if it is related to this problem exactly or not. After installing the extension this error comes up in cmd "ImportError: cannot import name 'Undefined' from 'pydantic.fields' (S:\AI\StableDiffusion\system\python\lib\site-packages\pydantic\fields.py)" and deleting controlnet extension in extensions folder does not help. The only thing that helps is deleting the contents of system folder and installing it again via sd.webui.zip and run.bat. I use Windows 10 and Firefox

Steps to reproduce the problem

Go to Extensions tab in WebUI
Find the extension and press Install
Apply and restart WebUI

What should have happened?

WebUI should start after applying and restarting

Commit where the problem happens

webui: Automatic1111 1.9.0 controlnet: I have no idea as of webui doesn't start but it's the latest one at the moment of 17th of april 2024

What browsers do you use to access the UI ?

Mozilla Firefox

Command Line Arguments

--theme dark --xformers

List of enabled extensions

adetailer sd-civitai-browser-plus sd-dynamic-prompts sd-webui-agent-scheduler sd-webui-controlnet sd-webui-infinite-image-browsing sd-webui-regional-prompter

Console logs

Traceback (most recent call last):
  File "S:\AI\StableDiffusion\webui\launch.py", line 48, in <module>
    main()
  File "S:\AI\StableDiffusion\webui\launch.py", line 44, in main
    start()
  File "S:\AI\StableDiffusion\webui\modules\launch_utils.py", line 465, in start
    import webui
  File "S:\AI\StableDiffusion\webui\webui.py", line 13, in <module>
    initialize.imports()
  File "S:\AI\StableDiffusion\webui\modules\initialize.py", line 23, in imports
    import gradio  # noqa: F401
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\gradio\__init__.py", line 3, in <module>
    import gradio.components as components
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\gradio\components\__init__.py", line 1, in <module>
    from gradio.components.annotated_image import AnnotatedImage
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\gradio\components\annotated_image.py", line 13, in <module>
    from gradio.components.base import IOComponent, _Keywords
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\gradio\components\base.py", line 20, in <module>
    from fastapi import UploadFile
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\fastapi\__init__.py", line 7, in <module>
    from .applications import FastAPI as FastAPI
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\fastapi\applications.py", line 15, in <module>
    from fastapi import routing
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\fastapi\routing.py", line 22, in <module>
    from fastapi import params
  File "S:\AI\StableDiffusion\system\python\lib\site-packages\fastapi\params.py", line 4, in <module>
    from pydantic.fields import FieldInfo, Undefined
ImportError: cannot import name 'Undefined' from 'pydantic.fields' (S:\AI\StableDiffusion\system\python\lib\site-packages\pydantic\fields.py)

Additional information

No response

Mikubill / sd-webui-controlnet