BerriAI/litellm · error · OCIError

Chunk cannot be parsed as OCIStreamChunk: {e}

Error message

Chunk cannot be parsed as OCIStreamChunk: {e}

What it means

Error "Chunk cannot be parsed as OCIStreamChunk: {e}" thrown in BerriAI/litellm.

Source

Thrown at litellm/llms/oci/chat/generic.py:372

        reasoning_tokens=reasoning_tokens,
    )

    return model_response


def handle_generic_stream_chunk(dict_chunk: dict) -> ModelResponseStream:
    """Parse a single GENERIC SSE chunk into a LiteLLM ModelResponseStream."""
    # OCI streams tool calls progressively — early chunks may omit required fields.
    if dict_chunk.get("message") and dict_chunk["message"].get("toolCalls"):
        for tool_call in dict_chunk["message"]["toolCalls"]:
            tool_call.setdefault("arguments", "")
            tool_call.setdefault("id", "")
            tool_call.setdefault("name", "")

    try:
        typed_chunk: Final = OCIStreamChunk(**dict_chunk)
    except (TypeError, ValidationError) as e:
        raise OCIError(
            status_code=500,
            message=f"Chunk cannot be parsed as OCIStreamChunk: {e}",
        )

    if typed_chunk.index is None:
        typed_chunk.index = 0

    # Emit ``content=None`` rather than ``content=""`` on chunks with no text
    # parts (e.g. tool-call-only or keep-alive chunks) so downstream
    # stream-mergers that distinguish "no text in this delta" from "an
    # explicitly empty text delta" behave correctly.
    text: str | None = None
    if typed_chunk.message and typed_chunk.message.content:
        for item in typed_chunk.message.content:
            if isinstance(item, OCITextContentPart):
                text = (text or "") + item.text
            elif isinstance(item, OCIImageContentPart):
                raise OCIError(

View on GitHub (pinned to 6c2dcb801b)

Solutions

1. The OCI stream chunk did not match the expected schema; see the wrapped exception.

When it happens

Trigger: Thrown at litellm/llms/oci/chat/generic.py:372 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of BerriAI/litellm@6c2dcb801b (2026-08-15). Data as JSON: /api/errors/a4744b40cf9711a0. Report an issue: GitHub.