{"record":{"id":"32765fb5a36b8d88","repo":"langflow-ai/langflow","slug":"one-or-more-flow-versions-are-invalid-please-ensu","errorCode":null,"errorMessage":"One or more flow versions are invalid. Please ensure the flows belong to the project containing the deployment.","messagePattern":"One or more flow versions are invalid\\. Please ensure the flows belong to the project containing the deployment\\.","errorType":"http","errorClass":"HTTPException","httpStatus":404,"severity":"error","filePath":"src/backend/base/langflow/api/v1/mappers/deployments/helpers.py","lineNumber":175,"sourceCode":"            ),\n        )\n        .join(\n            Deployment,\n            and_(\n                Deployment.id == deployment_db_id,\n                Deployment.user_id == user_id,\n                Deployment.project_id == Flow.folder_id,\n            ),\n        )\n        .order_by(indexed_flow_version_ids_cte.c.position)\n    )\n    rows = list((await db.exec(statement)).all())\n    if len(rows) < len(flow_version_ids):\n        msg = (\n            \"One or more flow versions are invalid. \"\n            \"Please ensure the flows belong to the project containing the deployment.\"\n        )\n        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=msg)\n\n    artifacts: list[tuple[UUID, int, UUID, BaseFlowArtifact]] = []\n    for row in rows:\n        if row.flow_version_data is None:\n            msg = f\"Flow version {row.flow_version_id} has no data (snapshot may be corrupted).\"\n            raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=msg)\n        artifacts.append(\n            (\n                row.flow_version_id,\n                row.flow_version_number,\n                row.project_id,\n                BaseFlowArtifact(\n                    id=row.flow_id,\n                    name=row.flow_name,\n                    description=row.flow_description,\n                    data=row.flow_version_data,\n                    tags=row.flow_tags,\n                ),","sourceCodeStart":157,"sourceCodeEnd":193,"githubUrl":"https://github.com/langflow-ai/langflow/blob/976ec789d2886a86de109c044d089d68e96c9a35/src/backend/base/langflow/api/v1/mappers/deployments/helpers.py#L157-L193","documentation":"Error \"One or more flow versions are invalid. Please ensure the flows belong to the project containing the deployment.\" thrown in langflow-ai/langflow.","triggerScenarios":"Occurs when one or more referenced flow versions do not belong to flows in the project containing the deployment.","commonSituations":"See trigger scenarios.","solutions":["Attach only flow versions whose flows belong to the deployment's project."],"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":"2026-08-15T17:31:12.345Z"}