{"record":{"id":"0c876cf6bbab6ac0","repo":"langflow-ai/langflow","slug":"could-not-update-the-flow","errorCode":null,"errorMessage":"Could not update the flow.","messagePattern":"Could not update the flow\\.","errorType":"http","errorClass":"HTTPException","httpStatus":500,"severity":"error","filePath":"src/backend/base/langflow/api/v1/flows.py","lineNumber":449,"sourceCode":"    except HTTPException:\n        raise\n    except Exception as e:\n        await araise_if_deployment_guard_error_or_skip(\n            e,\n            log_message=f\"op=update_flow flow_id={flow_id}\",\n        )\n        if is_database_lock_error(e):\n            await logger.awarning(\"op=update_flow flow_id=%s exhausted lock retries\", flow_id)\n            raise HTTPException(\n                status_code=status.HTTP_503_SERVICE_UNAVAILABLE,\n                detail=FLOW_UPDATE_BUSY,\n                headers={\"Retry-After\": \"1\"},\n            ) from e\n        handled_error = _handle_unique_constraint_error(e)\n        if handled_error.status_code != status.HTTP_500_INTERNAL_SERVER_ERROR:\n            raise handled_error from e\n        await logger.aerror(\"op=update_flow flow_id=%s failed with %s\", flow_id, type(e).__name__)\n        raise HTTPException(\n            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,\n            detail=FLOW_UPDATE_FAILED,\n        ) from e\n\n\n@router.put(\"/{flow_id}\", response_model=FlowRead)\nasync def upsert_flow(\n    *,\n    session: DbSession,\n    flow_id: UUID,\n    flow: FlowCreate,\n    current_user: CurrentActiveUser,\n    storage_service: Annotated[StorageService, Depends(get_storage_service)],\n):\n    \"\"\"Create or update a flow with a specific ID (upsert).\n\n    Returns 201 for creation, 200 for update.  Returns 404 if owned by another user.\n    \"\"\"","sourceCodeStart":431,"sourceCodeEnd":467,"githubUrl":"https://github.com/langflow-ai/langflow/blob/976ec789d2886a86de109c044d089d68e96c9a35/src/backend/base/langflow/api/v1/flows.py#L431-L467","documentation":"Error \"Could not update the flow.\" thrown in langflow-ai/langflow.","triggerScenarios":"Occurs when the database update for a flow fails or affects no rows, so the flow could not be updated.","commonSituations":"See trigger scenarios.","solutions":["Retry the update; if it persists, check server logs for the underlying database error.","Verify the flow payload is valid and the flow still exists."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"976ec789d2886a86de109c044d089d68e96c9a35","analyzedAt":"2026-08-14T18:23:12.227Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}