ruvnet/ruflo · error

No output generated after streaming; emitting error status

Error message

No output generated after streaming; emitting error status

What it means

Log warning in the conversation stream handler: the stream finished without producing any output content, so an error status update is emitted to the conversation in place of the missing final answer.

Source

Thrown at ruflo/src/ruvocal/src/routes/conversation/[id]/+server.ts:632

					hasError = true;
					// Extract status code if available from HTTPError or APIError
					const errObj = err as unknown as Record<string, unknown>;
					const statusCode =
						(typeof errObj.statusCode === "number" ? errObj.statusCode : undefined) ||
						(typeof errObj.status === "number" ? errObj.status : undefined);
					await update({
						type: MessageUpdateType.Status,
						status: MessageUpdateStatus.Error,
						message: err.message,
						...(statusCode && { statusCode }),
					});
					logger.error(err, "Error in conversation stream");
				}
			} finally {
				// check if no output was generated
				if (!hasError && !abortedByUser && messageToWriteTo.content === initialMessageContent) {
					hasError = true;
					logger.warn(
						{
							conversationId: conversationKey,
							updatesCount: messageToWriteTo.updates?.length ?? 0,
							filesCount: messageToWriteTo.files?.length ?? 0,
							reasoningLen: messageToWriteTo.reasoning?.length ?? 0,
							initialLen: initialMessageContent.length,
							finalLen: messageToWriteTo.content.length,
						},
						"No output generated after streaming; emitting error status"
					);
					await update({
						type: MessageUpdateType.Status,
						status: MessageUpdateStatus.Error,
						message: "No output was generated. Something went wrong.",
					});
				}
			}

View on GitHub (pinned to fa13ee4ad6)

Solutions

1. Check the upstream model/endpoint for empty responses; retry the request or switch the endpoint, and inspect earlier logs for the stream failure cause.

When it happens

Trigger: Thrown at ruflo/src/ruvocal/src/routes/conversation/[id]/+server.ts:632 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ruvnet/ruflo@fa13ee4ad6 (2026-08-18). Data as JSON: /api/errors/739be6cf3f238112. Report an issue: GitHub.