langgenius/dify · error · NotFound

Conversation Not Exists.

Error message

Conversation Not Exists.

What it means

Error "Conversation Not Exists." thrown in langgenius/dify.

Source

Thrown at api/controllers/console/app/completion.py:184

        args = req_data.model_dump(exclude_none=True, by_alias=True)

        streaming = req_data.response_mode != "blocking"
        args["auto_generate_name"] = False

        try:
            response = AppGenerateService.generate(
                session=session,
                app_model=app_model,
                user=current_user,
                args=args,
                invoke_from=InvokeFrom.DEBUGGER,
                streaming=streaming,
            )

            # response-contract:ignore compact_generate_response
            return helper.compact_generate_response(response)
        except services.errors.conversation.ConversationNotExistsError:
            raise NotFound("Conversation Not Exists.")
        except services.errors.conversation.ConversationCompletedError:
            raise ConversationCompletedError()
        except services.errors.app_model_config.AppModelConfigBrokenError:
            logger.exception("App model config broken.")
            raise AppUnavailableError()
        except ProviderTokenNotInitError as ex:
            raise ProviderNotInitializeError(ex.description)
        except QuotaExceededError:
            raise ProviderQuotaExceededError()
        except ModelCurrentlyNotSupportError:
            raise ProviderModelCurrentlyNotSupportError()
        except InvokeError as e:
            raise CompletionRequestError(e.description)
        except ValueError as e:
            raise e
        except Exception as e:
            logger.exception("internal server error.")
            raise InternalServerError()

View on GitHub (pinned to ef8544b173)

When it happens

Trigger: Thrown at api/controllers/console/app/completion.py:184 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of langgenius/dify@ef8544b173 (2026-08-12). Data as JSON: /api/errors/7b0879417f8f4059. Report an issue: GitHub.