HKUDS/nanobot · error · ConfigLoadError

The file is not valid UTF-8.

Error message

The file is not valid UTF-8.

What it means

Error "The file is not valid UTF-8." thrown in HKUDS/nanobot.

Source

Thrown at nanobot/config/loader.py:95

            ) from exc
        config.bind_source_path(path)
        _apply_ssrf_whitelist(config)
        return config

    try:
        with path.open(encoding="utf-8") as handle:
            data = json.load(handle)
    except json.JSONDecodeError as exc:
        raise ConfigLoadError(
            path,
            kind="invalid_json",
            summary=(
                f"JSON syntax error at line {exc.lineno}, column {exc.colno}: "
                f"{_sentence(exc.msg)}"
            ),
        ) from exc
    except UnicodeDecodeError as exc:
        raise ConfigLoadError(
            path,
            kind="io_error",
            summary="The file is not valid UTF-8.",
        ) from exc
    except OSError as exc:
        detail = exc.strerror or type(exc).__name__
        raise ConfigLoadError(
            path,
            kind="io_error",
            summary=f"Unable to read the file: {_sentence(detail)}",
        ) from exc

    if not isinstance(data, dict):
        root_type = type(data).__name__
        raise ConfigLoadError(
            path,
            kind="invalid_root",
            summary="The top level of config.json must be a JSON object.",

View on GitHub (pinned to 42f37dc4c0)

When it happens

Trigger: Thrown at nanobot/config/loader.py:95 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of HKUDS/nanobot@42f37dc4c0 (2026-08-26). Data as JSON: /api/errors/bc7cc3c40267ef53. Report an issue: GitHub.