Issue: OpenAIRealtimeBetaLLMService#0 exception: 'NoneType' object has no attribute 'add_user_content_item_as_message'

[XavierGeerinck]

Description

Environment

• pipecat-ai version: 0.50.0
• python version: 3.12
• OS: Mac

Issue

Receiving an issue in the latest Pipecat with an OpenAIRealtimeBeta service configured:

OpenAIRealtimeBetaLLMService#0 exception: 'NoneType' object has no attribute 'add_user_content_item_as_message'

Not to deep into the codebase yet, but I guess it's somewhere here where context is None?

[anthony2261]

Getting the same error myself, with pipecat v0.0.52. A bit about my setup:

transport = DailyTransport(...)

session_properties = SessionProperties(
    input_audio_transcription=InputAudioTranscription(),
    turn_detection=TurnDetection(silence_duration_ms=1000),
)

llm = OpenAIRealtimeBetaLLMService(
    api_key=os.getenv("OPENAI_API_KEY"), session_properties=session_properties
)

messages = [ ... ]  # initial context
context = OpenAILLMContext(messages)
context_aggregator = llm.create_context_aggregator(context)

# Add transcription processor
transcript = TranscriptProcessor()
transcript_handler = TranscriptHandler()  # Taken from the 28a-transcription-processor-openai.py example

# Register event handler for transcript updates
@transcript.event_handler("on_transcript_update")
async def on_transcript_update(processor, frame):
    await transcript_handler.on_transcript_update(processor, frame)

# Update pipeline to use transcript processor
pipeline = Pipeline(
    [
        transport.input(),
        transcript.user(),  # User transcripts
        context_aggregator.user(),
        llm,
        transport.output(),
        context_aggregator.assistant(),
        transcript.assistant(),  # Assistant transcripts
    ]
)

# Create and configure the pipeline
task = PipelineTask(
    pipeline,
    PipelineParams(
        allow_interruptions=True,
        enable_metrics=True,
    ),
)

runner = PipelineRunner()
await runner.run(task)