BerriAI/litellm · error · ValueError

Vector store file update is not supported for {custom_llm_pr

Error message

Vector store file update is not supported for {custom_llm_provider}

What it means

Provider-support check when updating a vector store file: the resolved custom_llm_provider lacks an update implementation in the provider registry, so the mutation cannot be performed.

Source

Thrown at litellm/vector_store_files/main.py:597

    **kwargs,
) -> VectorStoreFileObject | Coroutine[Any, Any, VectorStoreFileObject]:
    local_vars: Final = locals()
    try:
        litellm_logging_obj: Final[LiteLLMLoggingObj] = kwargs.get("litellm_logging_obj")
        litellm_call_id: Final[str | None] = kwargs.get("litellm_call_id")
        _is_async: Final = kwargs.pop("aupdate", False) is True

        custom_llm_provider = _ensure_provider(custom_llm_provider)

        _prepare_registry_credentials(vector_store_id=vector_store_id, kwargs=kwargs)

        litellm_params: Final = GenericLiteLLMParams(vector_store_id=vector_store_id, **kwargs)

        provider_config: Final = ProviderConfigManager.get_provider_vector_store_files_config(
            provider=LlmProviders(custom_llm_provider)
        )
        if provider_config is None:
            raise ValueError(f"Vector store file update is not supported for {custom_llm_provider}")

        local_vars.update(kwargs)
        update_request: VectorStoreFileUpdateRequest = VectorStoreFileRequestUtils.get_update_request_params(local_vars)
        update_request["attributes"] = attributes

        litellm_logging_obj.update_from_kwargs(
            kwargs=kwargs,
            model=None,
            optional_params={
                "vector_store_id": vector_store_id,
                "file_id": file_id,
                **update_request,
            },
            litellm_params={
                "vector_store_id": vector_store_id,
                "litellm_call_id": litellm_call_id,
                **litellm_params.model_dump(exclude_none=True),
            },

View on GitHub (pinned to 77b7c6c40c)

Solutions

1. Use a provider that supports updating vector store files, or implement it in a custom provider wrapper for {custom_llm_provider}.

When it happens

Trigger: Thrown at litellm/vector_store_files/main.py:597 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of BerriAI/litellm@77b7c6c40c (2026-08-18). Data as JSON: /api/errors/453a3b46323daceb. Report an issue: GitHub.