HKUDS/nanobot · error · RuntimeError

Matrix message was not delivered: {response}

Error message

Matrix message was not delivered: {response}

What it means

Error "Matrix message was not delivered: {response}" thrown in HKUDS/nanobot.

Source

Thrown at nanobot/channels/matrix/runtime.py:621

            if candidates:
                limit_bytes = await self._effective_media_limit_bytes()
                for path in candidates:
                    if fail := await self._upload_and_send_attachment(
                        room_id=msg.chat_id,
                        path=path,
                        limit_bytes=limit_bytes,
                        relates_to=relates_to,
                    ):
                        failures.append(fail)
            if failures:
                text = f"{text.rstrip()}\n{chr(10).join(failures)}" if text.strip() else "\n".join(failures)
            if text.strip():
                content = _build_matrix_text_content(text)
                if relates_to:
                    content["m.relates_to"] = relates_to
                response = await self._send_room_content(msg.chat_id, content)
                if isinstance(response, RoomSendError):
                    raise RuntimeError(f"Matrix message was not delivered: {response}")
        finally:
            if not is_progress:
                await self._stop_typing_keepalive(msg.chat_id, clear_typing=True)

    async def send_delta(
        self,
        chat_id: str,
        delta: str,
        metadata: dict[str, Any] | None = None,
        *,
        stream_id: str | None = None,
        stream_end: bool = False,
        resuming: bool = False,
        merge_next: bool = False,
    ) -> None:
        relates_to = self._build_thread_relates_to(metadata)

        if stream_end and merge_next:

View on GitHub (pinned to 42f37dc4c0)

When it happens

Trigger: Thrown at nanobot/channels/matrix/runtime.py:621 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/312c1e1213ae9496. Report an issue: GitHub.