HKUDS/Vibe-Trading · error · LongbridgeConfigError

Longbridge SDK has no method '{name}'

Error message

Longbridge SDK has no method '{name}'

What it means

Raised by the internal _call helper when reflecting a method name off the Longbridge SDK client object and it doesn't exist. This happens when the installed longport/longbridge Python package version doesn't match the method names the connector expects (e.g. after an SDK upgrade/renaming or a very old SDK).

Source

Thrown at agent/src/trading/connectors/longbridge/sdk.py:912

    }


def _bar_to_dict(item: Any) -> dict[str, Any]:
    return {
        "time": str(_first(item, ("timestamp",), "")),
        "open": _float_or_none(_first(item, ("open",))),
        "high": _float_or_none(_first(item, ("high",))),
        "low": _float_or_none(_first(item, ("low",))),
        "close": _float_or_none(_first(item, ("close",))),
        "volume": _float_or_none(_first(item, ("volume",))),
        "turnover": _float_or_none(_first(item, ("turnover",))),
    }


def _call(obj: Any, name: str, *args: Any, **kwargs: Any) -> Any:
    fn = getattr(obj, name, None)
    if fn is None:
        raise LongbridgeConfigError(f"Longbridge SDK has no method '{name}'")
    return fn(*args, **kwargs)


def _safe_call(obj: Any, name: str, *args: Any) -> Any:
    fn = getattr(obj, name, None)
    if fn is None:
        return None
    try:
        return fn(*args)
    except Exception:  # noqa: BLE001 - optional read, degrade quietly
        return None

View on GitHub (pinned to 80ffdda44c)

Solutions

1. Check the installed version: pip show longport (or longbridge) and compare with the version the connector supports
2. Upgrade the SDK: pip install -U longport
3. Pin a known-good version in requirements (e.g. longport==x.y.z) matching the connector's expected API
4. If the method was renamed, update the connector wrapper in agent/src/trading/connectors/longbridge/sdk.py to call the new name

Example fix

# before
pip install longport==0.1.0  # old, missing methods
# after
pip install -U 'longport>=3.0'

import importlib
def longbridge_sdk_ok(methods=("balance", "stock_quote")):
    try:
        import longport
    except ImportError:
        return False
    return True
# after client construction:
# assert all(hasattr(client, m) for m in methods)

try:
    snap = get_account_snapshot()
except LongbridgeConfigError as e:
    if 'no method' in str(e):
        raise RuntimeError(f'SDK/connector version mismatch: {e} — upgrade longport') from e
    raise

When it happens

Trigger: Calling get_account_snapshot, get_positions, get_open_orders, get_quote or get_quotes through the connector when the wrapped Longbridge SDK object lacks the method name the connector looks up via getattr.

Common situations: Upgraded or downgraded the longport SDK so trade/quote API methods were renamed; using an exotic fork of the SDK; connector code written against a newer SDK than installed.

Related errors

• unknown universe {universe!r}; expected one of {sorted(_VALI
• unknown zoo {v!r}; expected one of {sorted(_VALID_ZOOS)}
• unknown universe {v!r}; expected one of {sorted(_BENCH_UNIVE
• invalid alpha_id {aid!r}
• need at least 2 distinct alpha_ids to compare

AI-assisted analysis of HKUDS/Vibe-Trading@80ffdda44c (2026-08-28). Data as JSON: /api/errors/89f658393b989da4. Report an issue: GitHub.