pydantic_core._pydantic_core.ValidationError: 1 validation error for FinetuneList

TL;DR

We resolved it, and the command runs well without any problems. server-side bugs can surface as client-side pydantic validation errors; retry later / check status before chasing local fixes.

Steps

1. Contributor artek0chumak: 'It was a bug in the API. We resolved it, and the command runs well without any problems. You can try it again without updating the client.'
2. server-side bugs can surface as client-side pydantic validation errors; retry later / check status before chasing local fixes.

When to use

You are seeing this: Issue togethercomputer/together-python#246 (closed, 2 comments): together fine-tuning list crashed with a pydantic ValidationError on FinetuneList, i.e. the API response no longer matched the client's schema. Use this skill when you run into "pydanticcore.pydantic_core.ValidationError: 1 validation error for FinetuneList".

When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

Versions

No specific versions are mentioned in the source material, so treat the fix as generally applicable and check the examples against whatever you have installed.

Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

Asked in gh:togethercomputer/together-python#246 (https://github.com/togethercomputer/together-python/issues/246): pydanticcore.pydantic_core.ValidationError: 1 validation error for FinetuneList. The issue report: Issue togethercomputer/together-python#246 (closed, 2 comments): together fine-tuning list crashed with a pydantic ValidationError on FinetuneList, i.e. the API response no longer matched the client's schema. The verified answer: Contributor artek0chumak: 'It was a bug in the API. We resolved it, and the command runs well without any problems. You can try it again without updating the client.' Lesson: server-side bugs can surface as client-side pydantic validation errors; retry later / check status before chasing local fixes.