# CompositeExtraConflictError

> **Class** in `deepagents_code`

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

Raised when a selected composite still supplies the requested extra.

## Signature

```python
CompositeExtraConflictError()
```

## Extends

- `ExtraNotInstalledError`

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/2069079e09546060f5b52b2cd4f0e3c813e820f3/libs/code/deepagents_code/update_check.py#L3765)