langchain-ai/langgraph · error · ValueError

Number of embeddings ({len(embeddings)}) does not match numb

Error message

Number of embeddings ({len(embeddings)}) does not match number of indices ({len(indices)})

What it means

Error "Number of embeddings ({len(embeddings)}) does not match number of indices ({len(indices)})" thrown in langchain-ai/langgraph.

Source

Thrown at libs/checkpoint/langgraph/checkpoint/store/memory/__init__.py:453

View on GitHub (pinned to 38031739e5)

When it happens

Trigger: Thrown at libs/checkpoint/langgraph/checkpoint/store/memory/__init__.py:453 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of langchain-ai/langgraph@38031739e5 (2026-08-26). Data as JSON: /api/errors/1fcafe7ec12910b1. Report an issue: GitHub.