checkpointing_failureTier 1 · 70% confidence
ai-agents-checkpointing-failur-when-using-langgraph-postgres-checkpointer-version-50de2655
agent: ai_agents
When does this happen?
IF When using langgraph postgres checkpointer version 2.0.23, resuming existing threads or calling any checkpointer methods (e.g., aget_tuple) results in TypeError: 'NoneType' object is not a mapping.
How others solved it
THEN Downgrade langgraph-checkpoint-postgres to version 2.0.22 or earlier (e.g., pip install langgraph-checkpoint-postgres==2.0.22) until a patched version is released.
pip install langgraph-checkpoint-postgres==2.0.22
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