{"record":{"id":"4cc24b2357feaadc","repo":"langchain-ai/langgraph","slug":"no-updates-provided","errorCode":null,"errorMessage":"No updates provided","messagePattern":"No updates provided","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"libs/langgraph/langgraph/pregel/main.py","lineNumber":1623,"sourceCode":"            InvalidUpdateError: If an invalid update is provided.\n\n        Returns:\n            RunnableConfig: The updated config.\n        \"\"\"\n\n        checkpointer: BaseCheckpointSaver | None = ensure_config(config)[CONF].get(\n            CONFIG_KEY_CHECKPOINTER, self.checkpointer\n        )\n        if isinstance(checkpointer, BaseCheckpointSaver):\n            checkpointer = self._apply_checkpointer_allowlist(checkpointer)\n        if not checkpointer:\n            raise ValueError(\"No checkpointer set\")\n\n        if len(supersteps) == 0:\n            raise ValueError(\"No supersteps provided\")\n\n        if any(len(u) == 0 for u in supersteps):\n            raise ValueError(\"No updates provided\")\n\n        # delegate to subgraph\n        if (\n            checkpoint_ns := config[CONF].get(CONFIG_KEY_CHECKPOINT_NS, \"\")\n        ) and CONFIG_KEY_CHECKPOINTER not in config[CONF]:\n            # remove task_ids from checkpoint_ns\n            recast = recast_checkpoint_ns(checkpoint_ns)\n            # find the subgraph with the matching name\n            for _, pregel in self.get_subgraphs(namespace=recast, recurse=True):\n                return pregel.bulk_update_state(\n                    patch_configurable(config, {CONFIG_KEY_CHECKPOINTER: checkpointer}),\n                    supersteps,\n                )\n            else:\n                raise ValueError(f\"Subgraph {recast} not found\")\n\n        def perform_superstep(\n            input_config: RunnableConfig, updates: Sequence[StateUpdate]","sourceCodeStart":1605,"sourceCodeEnd":1641,"githubUrl":"https://github.com/langchain-ai/langgraph/blob/38031739e551638e373fb553453256c23feeb41f/libs/langgraph/langgraph/pregel/main.py#L1605-L1641","documentation":"Error \"No updates provided\" thrown in langchain-ai/langgraph.","triggerScenarios":"Thrown at libs/langgraph/langgraph/pregel/main.py:1623 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"38031739e551638e373fb553453256c23feeb41f","analyzedAt":"2026-08-26T18:02:49.312Z","schemaVersion":2},"datasetVersion":"2026-08-26T21:11:00.512Z"}