chroma-core/chroma · error · ValueError

Unsupported encoding: {encoding.value}

Error message

Unsupported encoding: {encoding.value}

What it means

Error "Unsupported encoding: {encoding.value}" thrown in chroma-core/chroma.

Source

Thrown at chromadb/ingest/__init__.py:23

    LogRecord,
    SeqId,
    Vector,
    ScalarEncoding,
)
from chromadb.config import Component
from uuid import UUID
import numpy as np


def encode_vector(vector: Vector, encoding: ScalarEncoding) -> bytes:
    """Encode a vector into a byte array."""

    if encoding == ScalarEncoding.FLOAT32:
        return np.array(vector, dtype=np.float32).tobytes()
    elif encoding == ScalarEncoding.INT32:
        return np.array(vector, dtype=np.int32).tobytes()
    else:
        raise ValueError(f"Unsupported encoding: {encoding.value}")


def decode_vector(vector: bytes, encoding: ScalarEncoding) -> Vector:
    """Decode a byte array into a vector"""

    if encoding == ScalarEncoding.FLOAT32:
        return np.frombuffer(vector, dtype=np.float32)
    elif encoding == ScalarEncoding.INT32:
        return np.frombuffer(vector, dtype=np.float32)
    else:
        raise ValueError(f"Unsupported encoding: {encoding.value}")


class Producer(Component):
    """Interface for writing embeddings to an ingest stream"""

    @abstractmethod
    def delete_log(self, collection_id: UUID) -> None:

View on GitHub (pinned to aecdd12c8a)

When it happens

Trigger: Thrown at chromadb/ingest/__init__.py:23 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/68bd7825c6681076. Report an issue: GitHub.