# LangSmithProjectNotFoundError

> **Class** in `deepagents_code`

📖 [View in docs](https://reference.langchain.com/python/deepagents-code/config/LangSmithProjectNotFoundError)

The LangSmith project does not exist yet (lookup returned 404).

Projects are created lazily on the first ingested trace, so this is
expected before any run has flushed and should be surfaced as an
informational message rather than an error.

## Signature

```python
LangSmithProjectNotFoundError()
```

## Extends

- `LangSmithApiError`

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/7794b61a6e76230e8c7a49bdce808b3728305914/libs/code/deepagents_code/config.py#L3641)