BerriAI/litellm · error · NotImplementedError

validate_environment is not implemented

Error message

validate_environment is not implemented

What it means

Error "validate_environment is not implemented" thrown in BerriAI/litellm.

Source

Thrown at litellm/llms/base_llm/google_genai/transformation.py:114

        self,
        api_key: str | None,
        headers: dict | None,
        model: str,
        litellm_params: GenericLiteLLMParams | dict | None,
    ) -> dict:
        """
        Validate the environment and return headers for the request.

        Args:
            api_key: API key
            headers: Existing headers
            model: The model name
            litellm_params: LiteLLM parameters

        Returns:
            Updated headers
        """
        raise NotImplementedError("validate_environment is not implemented")

    def sync_get_auth_token_and_url(
        self,
        api_base: str | None,
        model: str,
        litellm_params: dict,
        stream: bool,
    ) -> tuple[dict, str]:
        """
        Sync version of get_auth_token_and_url.

        Args:
            api_base: Base API URL
            model: The model name
            litellm_params: LiteLLM parameters
            stream: Whether this is a streaming call

        Returns:

View on GitHub (pinned to 77b7c6c40c)

Solutions

1. Use a concrete Google GenAI config subclass implementing validate_environment.

When it happens

Trigger: Thrown at litellm/llms/base_llm/google_genai/transformation.py:114 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/d6dca6e28d70214a. Report an issue: GitHub.