chroma-core/chroma · error · ValueError

Unknown CMEK provider: {self.provider}

Error message

Unknown CMEK provider: {self.provider}

What it means

Error "Unknown CMEK provider: {self.provider}" thrown in chroma-core/chroma.

Source

Thrown at chromadb/api/types.py:1981

        if self.provider == CmekProvider.GCP:
            return _CMEK_GCP_PATTERN.match(self.resource) is not None
        return False

    def to_dict(self) -> Dict[str, Any]:
        """Serialize CMEK to dictionary format for API transport.

        Returns:
            Dict containing the provider variant and resource identifier.

        Example:
            >>> cmek = Cmek.gcp("projects/p/locations/l/keyRings/r/cryptoKeys/k")
            >>> cmek.to_dict()
            {'gcp': 'projects/p/locations/l/keyRings/r/cryptoKeys/k'}
        """
        if self.provider == CmekProvider.GCP:
            return {"gcp": self.resource}
        # Unreachable with current providers, but future-proof
        raise ValueError(f"Unknown CMEK provider: {self.provider}")

    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> "Cmek":
        """Deserialize CMEK from dictionary format.

        Args:
            data: Dictionary containing provider variant and resource.
                  Format matches Rust serde enum serialization with snake_case.

        Returns:
            Cmek: Deserialized CMEK instance

        Raises:
            ValueError: If the provider is unsupported or data is malformed

        Example:
            >>> data = {'gcp': 'projects/p/locations/l/keyRings/r/cryptoKeys/k'}
            >>> cmek = Cmek.from_dict(data)

View on GitHub (pinned to aecdd12c8a)

When it happens

Trigger: Thrown at chromadb/api/types.py:1981 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of chroma-core/chroma@aecdd12c8a (2026-08-16). Data as JSON: /api/errors/f7c7f063d7e01429. Report an issue: GitHub.