Comfy-Org/ComfyUI · error · TypeError

No output message found in response

Error message

No output message found in response

What it means

Error "No output message found in response" thrown in Comfy-Org/ComfyUI.

Source

Thrown at comfy_api_nodes/nodes_openai.py:1093

    @classmethod
    def get_message_content_from_response(cls, response: OpenAIResponse) -> list[OutputContent]:
        """Extract message content from the API response."""
        for output in response.output:
            if output.type == "message":
                return output.content
        raise TypeError("No output message found in response")

    @classmethod
    def get_text_from_message_content(cls, message_content: list[OutputContent]) -> str:

View on GitHub (pinned to 1c6d8d45b3)

Solutions

1. Retry the request; the OpenAI response contained no output message.

When it happens

Trigger: Thrown at comfy_api_nodes/nodes_openai.py:1093 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Comfy-Org/ComfyUI@1c6d8d45b3 (2026-08-14). Data as JSON: /api/errors/3b4390cee0794275. Report an issue: GitHub.