# EmptyInputError

> **Class** in `langgraph`

📖 [View in docs](https://reference.langchain.com/python/langgraph/errors/EmptyInputError)

Raised when graph receives an empty input.

## Signature

```python
EmptyInputError()
```

## Extends

- `Exception`

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/d27d4b2d9895a4aa83170b4aaa135878f99c7fd6/libs/langgraph/langgraph/errors.py#L118)