Autotrain Image Classification Server Error 500

During the past weeks, I’ve succesfully autotrained two models based on facebook/convnextv2-tiny-1k-224. It worked well.

Today, I wanted to do the same thing again (with some additional folders for training). I fired up the space and ran into my first issue: there was some error and the space wouldn’t boot, so I (foolishly) just deleted it and created a new space (went to the facebook/convnextv2-tiny-1k-224 model page → “Train” dropdown → Finetune this model without code) I created the space with Docker / Autotrain and a T4 small.

During the autotrain setup assistant, I selected facebook/convnextv2-tiny-1k-224 for Image Classification, selected the zip folder (this time containing five subfolders instead of three as I did during the last time). I clicked on “Start Training”, confirmed the pop-up, waited for a couple of seconds, then I got a server error 500 message. This was in the logs:

INFO: 10.16.2.201:9635 - “POST /ui/create_project HTTP/1.1” 500 Internal Server Error
ERROR: Exception in ASGI application
Traceback (most recent call last):
File “/app/env/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py”, line 407, in run_asgi
result = await app( # type: ignore[func-returns-value]
File “/app/env/lib/python3.10/site-packages/uvicorn/middleware/proxy_headers.py”, line 69, in call
return await self.app(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/fastapi/applications.py”, line 1054, in call
await super().call(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/starlette/applications.py”, line 123, in call
await self.middleware_stack(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/starlette/middleware/errors.py”, line 186, in call
raise exc
File “/app/env/lib/python3.10/site-packages/starlette/middleware/errors.py”, line 164, in call
await self.app(scope, receive, _send)
File “/app/env/lib/python3.10/site-packages/starlette/middleware/sessions.py”, line 85, in call
await self.app(scope, receive, send_wrapper)
File “/app/env/lib/python3.10/site-packages/starlette/middleware/exceptions.py”, line 65, in call
await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/starlette/_exception_handler.py”, line 64, in wrapped_app
raise exc
File “/app/env/lib/python3.10/site-packages/starlette/_exception_handler.py”, line 53, in wrapped_app
await app(scope, receive, sender)
File “/app/env/lib/python3.10/site-packages/starlette/routing.py”, line 756, in call
await self.middleware_stack(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/starlette/routing.py”, line 776, in app
await route.handle(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/starlette/routing.py”, line 297, in handle
await self.app(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/starlette/routing.py”, line 77, in app
await wrap_app_handling_exceptions(app, request)(scope, receive, send)
File “/app/env/lib/python3.10/site-packages/starlette/_exception_handler.py”, line 64, in wrapped_app
raise exc
File “/app/env/lib/python3.10/site-packages/starlette/_exception_handler.py”, line 53, in wrapped_app
await app(scope, receive, sender)
File “/app/env/lib/python3.10/site-packages/starlette/routing.py”, line 72, in app
response = await func(request)
File “/app/env/lib/python3.10/site-packages/fastapi/routing.py”, line 278, in app
raw_response = await run_endpoint_function(
File “/app/env/lib/python3.10/site-packages/fastapi/routing.py”, line 191, in run_endpoint_function
return await dependant.call(**values)
File “/app/env/lib/python3.10/site-packages/autotrain/app/ui_routes.py”, line 331, in handle_form
raise NotImplementedError
NotImplementedError

Googling this error didn’t help. Autotrain is supposed to be codeless, so I think I should expect either an error message that would help me solve the problem, or there is a bug on HF’s side.

Any help is greatly appreciated!

thats weird. do you have screenshot of the ui? or do you know the version showed?

thank you for reporting this.
issue has now been resolved. you should factory rebuild your autotrain space and make sure its on version 0.7.97 or higher.
apologies for the inconvenience.

please let me know if you still face this issue

Thank you for your swift support, the issue is solved!