langchain-ai/langgraph · error · ValueError

func must be provided

Error message

func must be provided

What it means

Error "func must be provided" thrown in langchain-ai/langgraph.

Source

Thrown at libs/checkpoint/langgraph/checkpoint/store/base/embed.py:156

View on GitHub (pinned to 38031739e5)

When it happens

Trigger: Thrown at libs/checkpoint/langgraph/checkpoint/store/base/embed.py:156 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/0050b060e62b79a6. Report an issue: GitHub.