Lesson 4 - Agentic Search Tools with checkpoint

Short Course Q&A AI Agents in LangGraph
1

I get this error when trying to run the Agent with a checkpoint :

1 validation error for CompiledStateGraph
checkpointer

  • instance of BaseCheckpointSaver expected (type=type_error.arbitrary_type; expected_arbitrary_type=BaseCheckpointSaver)*

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Here’s my langchain versions:
langgraph==0.2.14
langgraph-checkpoint==1.0.12
langgraph-checkpoint-sqlite==1.0.1