HKUDS/nanobot · error · ValueError

path must start with "/"

Error message

path must start with "/"

What it means

Error "path must start with "/"" thrown in HKUDS/nanobot.

Source

Thrown at nanobot/channels/websocket/runtime.py:240

    @field_validator("unix_socket_path")
    @classmethod
    def unix_socket_path_format(cls, value: str) -> str:
        value = value.strip()
        if not value:
            return ""
        if "\x00" in value:
            raise ValueError("unix_socket_path must not contain NUL bytes")
        path = Path(value).expanduser()
        if not path.is_absolute():
            raise ValueError("unix_socket_path must be an absolute path")
        return str(path)

    @field_validator("path")
    @classmethod
    def path_must_start_with_slash(cls, value: str) -> str:
        if not value.startswith("/"):
            raise ValueError('path must start with "/"')
        return _normalize_config_path(value)

    @field_validator("token_issue_path")
    @classmethod
    def token_issue_path_format(cls, value: str) -> str:
        value = value.strip()
        if not value:
            return ""
        if not value.startswith("/"):
            raise ValueError('token_issue_path must start with "/"')
        return _normalize_config_path(value)

    @field_validator("public_ws_url")
    @classmethod
    def public_ws_url_format(cls, value: str) -> str:
        value = value.strip()
        if not value:
            return ""

View on GitHub (pinned to 42f37dc4c0)

When it happens

Trigger: Thrown at nanobot/channels/websocket/runtime.py:240 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/ccfefc56b9da2966. Report an issue: GitHub.