{"record":{"id":"24314a73f2b0af70","repo":"langflow-ai/langflow","slug":"cannot-resolve-provider-snapshot-ids-for-flow-vers-24314a","errorCode":null,"errorMessage":"Cannot resolve provider snapshot ids for flow_version_ids in watsonx operations: {missing_flow_versions}","messagePattern":"Cannot resolve provider snapshot ids for flow_version_ids in watsonx operations: (.+?)","errorType":"http","errorClass":"HTTPException","httpStatus":422,"severity":"error","filePath":"src/backend/base/langflow/api/v1/mappers/deployments/watsonx_orchestrate/mapper.py","lineNumber":1885,"sourceCode":"        db: AsyncSession,\n        flow_version_ids: list[UUID],\n    ) -> dict[UUID, str]:\n        \"\"\"Strict lookup: raises 422 if any flow_version_id is missing.\"\"\"\n        snapshot_map = await self._lookup_snapshot_ids(\n            user_id=user_id,\n            deployment_db_id=deployment_db_id,\n            db=db,\n            flow_version_ids=flow_version_ids,\n        )\n        missing_flow_versions = [\n            str(flow_version_id) for flow_version_id in flow_version_ids if flow_version_id not in snapshot_map\n        ]\n        if missing_flow_versions:\n            msg = (\n                \"Cannot resolve provider snapshot ids for flow_version_ids in watsonx operations: \"\n                f\"{missing_flow_versions}\"\n            )\n            raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=msg)\n        return snapshot_map\n","sourceCodeStart":1867,"sourceCodeEnd":1887,"githubUrl":"https://github.com/langflow-ai/langflow/blob/976ec789d2886a86de109c044d089d68e96c9a35/src/backend/base/langflow/api/v1/mappers/deployments/watsonx_orchestrate/mapper.py#L1867-L1887","documentation":"Strict helper _resolve_existing_tool_snapshot_ids: given flow_version_ids it looks up provider snapshot ids from the deployment's tool attachments and raises HTTP 422 listing every id that cannot be resolved. All operations that touch already-deployed flows (upsert remove_app_ids, remove_flows) funnel through it. A missing id means the flow version has no recorded provider snapshot for this deployment.","triggerScenarios":"Any wxO deployment update whose operation set references a flow_version_id without a provider_snapshot_id attachment: upsert_flows[].remove_app_ids paths and every entry of remove_flows.","commonSituations":"Mixing flow versions from other deployments; retrying an update after a partial failure where bindings were rolled back; deleting attachment rows manually; deployment created via existing_agent_id tracking where no snapshots were ever pushed from Langflow.","solutions":["Cross-check every flow_version_id in the update payload against the deployment's current attached, snapshotted flow versions (GET the deployment first).","For deployments tracked via existing_agent_id, push the flows first (add_flows/upsert) so snapshot bindings exist before removing or rebinding.","Remove stale ids from the request and retry only with resolvable ones.","If attachments look wrong in the DB, re-run the full deployment update path to rebuild snapshot bindings."],"exampleFix":null,"handlingStrategy":"validation","validationCode":"snapshotted = await fetch_snapshotted_flow_version_ids(deployment_id)\nall_referenced = {str(i.flow_version_id) for i in provider_data.upsert_flows if i.remove_app_ids} | {str(fv) for fv in provider_data.remove_flows}\nassert all_referenced <= snapshotted, f\"unresolvable flow versions: {all_referenced - snapshotted}\"","typeGuard":"def all_resolvable(referenced: set[str], snapshotted: set[str]) -> bool:\n    return referenced.issubset(snapshotted)","tryCatchPattern":"try:\n    await client.patch(deployment_url, json=body)\nexcept HTTPError as e:\n    if e.response.status_code == 422 and \"Cannot resolve provider snapshot ids\" in e.response.text:\n        snapshotted = await fetch_snapshotted_flow_version_ids(deployment_id)\n        body = filter_to_resolvable(body, snapshotted)\n        # retry once with the pruned payload","preventionTips":["Maintain a client-side set of snapshotted flow versions per deployment and validate against it pre-send.","Push flows (upsert/add) before referencing them in remove/rebind operations.","Never reuse payload bodies across deployments."],"tags":["watsonx-orchestrate","deployments","http-422","snapshot-id","flow-version"],"backgroundTag":null,"analyzedSha":"976ec789d2886a86de109c044d089d68e96c9a35","analyzedAt":"2026-08-14T18:23:12.227Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}