Live call error: Cancellation failed: no active response found #189
Description
Getting the error: Cancellation failed: no active response found
My live phone calls through twillio successfully connects and I'm having a conversation with the voice agent.The tools associated with the agent run successfully and call is completed as planned about 50% of the time.
In other cases The call ends before completed and I'm getting this error:
code: 'ERR_UNHANDLED_ERROR', context: { type: 'error', error: { type: 'error', event_id: 'event_BrRIisLBR9gFs1Xlx2zsL', error: { type: 'invalid_request_error', code: 'response_cancel_not_active', message: 'Cancellation failed: no active response found', param: null, event_id: null } }
This ends the call and crashes my server.
Here's my websocket
fastify.register(async (fastify) => {
fastify.get("/test-stream", { websocket: true }, async (conn, req) => {
console.log("Client connected to test-stream");
const twilioTransportLayer = new TwilioRealtimeTransportLayer({
twilioWebSocket: conn,
});
const session = new RealtimeSession(homeCareAgent, {
transport: twilioTransportLayer,
model: "gpt-4o-realtime-preview-2025-06-03",
config: {
turnDetection: {
type: "server_vad",
},
inputAudioFormat: "g711_ulaw",
outputAudioFormat: "g711_ulaw",
voice: VOICE,
inputAudioTranscription: {
model: "gpt-4o-mini-transcribe",
},
},
});
await session.connect({
apiKey: OPENAI_API_KEY,
});
session.sendMessage(
"Great the user and ask how you can assist them today."
);
console.log("Connected to the OpenAI Realtime API");
session.on("*", (event) => {
console.log("Session event:", event.type || "null");
if (event.type === "response.output_item.done") {
console.log("Response output item done:", event?.item?.content || "null");
}
});
twilioTransportLayer.on("*", (event) => {
// Uncomment to log all transport layer events
if (event?.type == "response.done"){
console.log("Transport event:", event?.item?.content || "null")}
});
conn.on("close", () => {
console.log("Client disconnected from test-stream");
session.transport.close();
});
});
});