# DataplaneNotConfiguredError

> **Class** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/sandbox/_exceptions/DataplaneNotConfiguredError)

Raised when dataplane_url is not available for the sandbox.

This occurs when the sandbox-router URL is not configured for the cluster.

## Signature

```python
DataplaneNotConfiguredError()
```

## Extends

- `SandboxClientError`

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/ea8caba352b122b6f36fc5eaf45756ca00470e0a/python/langsmith/sandbox/_exceptions.py#L247)