i am getting this error with realtime multimodal agent: 2025-02-28 085121,140 - livekit.plugins.openai.realtime - DEBUG - conversation item created 2025-02-28 085121,686 - livekit.agents - DEBUG - committed agent speech 2025-02-28 085122,413 - livekit.plugins.openai.realtime - ERROR - OpenAI S2S error {'type': 'error', 'event_id': 'event_B5qNWWkz72iNaohNgEgTm', 'error': {'type': 'invalid_request_error', 'code': None, 'message': 'Cancellation failed: no active response found', 'param': None, 'event_id': None}} 2025-02-28 085122,413 - livekit.plugins.openai.realtime - ERROR - OpenAI S2S error {'type': 'error', 'event_id': 'event_B5qNWWkz72iNaohNgEgTm', 'error': {'type': 'invalid_request_error', 'code': None, 'message': 'Cancellation failed: no active response found', 'param': None, 'event_id': None}} {"message": "OpenAI S2S error {'type': 'error', 'event_id': 'event_B5qNWWkz72iNaohNgEgTm', 'error': {'type': 'invalid_request_error', 'code': None, 'message': 'Cancellation failed: no active response found', 'param': None, 'event_id': None}}", "level": "ERROR", "name": "livekit.plugins.openai.realtime", "session_id": "sess_B5qNErbBCHM1DRnVA3yVw", "pid": 26530, "job_id": "AJ_qq4yGGFEMakX", "timestamp": "2025-02-28T085122.413133+00:00"} 2025-02-28 085122,414 - phone-assistant - INFO - 📝 [Persistor] User transcription captured: 2025-02-28 085122,414 - livekit.agents - DEBUG - committed user speech 2025-02-28 085122,414 - phone-assistant - INFO - 📝 [Persistor] User transcription captured:

It seems likely that the error "Cancellation failed: no active response found" is related to an attempt to cancel a response when there is no active response in progress. This could occur if the system is trying to cancel a response that has already been completed or if there was no response initiated at all. According to the LiveKit documentation, this type of error is categorized as an

invalid_request_error

, indicating that the request to cancel was not valid in the current context. My understanding is that this issue might be related to the state management between the LiveKit SDK and the OpenAI service. It could be beneficial to review the sequence of operations leading up to this error to ensure that the cancellation request is only made when there is an active response. Additionally, checking for any asynchronous operations that might be affecting the timing of these requests could help in troubleshooting the issue. Would you like more detailed guidance on how to address this error? Sources: - LiveKit documentation 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@millions-hair-24956 yes

To address the "Cancellation failed: no active response found" error, let's break down the steps you can take to troubleshoot and resolve this issue: 1. Review Response Lifecycle: Ensure that the response lifecycle is correctly managed. The error suggests that a cancellation request is being made when there is no active response. Verify that the

response.create()

method is called before any cancellation attempts. This ensures that a response is indeed active before trying to cancel it. 2. Check for Asynchronous Operations: Since LiveKit and OpenAI APIs often involve asynchronous operations, ensure that the cancellation request is not being triggered prematurely. Use proper synchronization mechanisms like

asyncio

locks or conditions to manage the timing of these operations. 3. Logging and Debugging: Add detailed logging around the response creation and cancellation logic. This will help you trace the sequence of events and identify any discrepancies in the expected flow. Look for logs that confirm the creation of a response before a cancellation is attempted. 4. Error Handling: Implement error handling to gracefully manage situations where a cancellation is attempted without an active response. This can prevent the application from entering an inconsistent state and provide more informative feedback for debugging. 5. Review API Documentation: Double-check the LiveKit API documentation to ensure that all API calls are being used correctly and in the right order. Pay special attention to the methods related to response management. 6. Test with Simplified Scenarios: If possible, create a simplified version of your application that isolates the response creation and cancellation logic. This can help you identify the root cause of the issue without the complexity of the full application. By following these steps, you should be able to identify and resolve the issue causing the "Cancellation failed: no active response found" error. If you have specific code snippets or logs you'd like to review, feel free to share them for more targeted assistance. Sources: - https://livekit-users.slack.com/archives/C07FY8WHGPM/p1729118266.498039 - https://livekit-users.slack.com/archives/C07FY8WHGPM/p1728507563.590759 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.