# tinker_cookbook.exceptions.RendererError

## _class_ [**tinker_cookbook.exceptions.RendererError**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/exceptions.py#L120) ( _[TinkerCookbookError](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/exceptions/tinkercookbookerror/), ValueError_)

An error related to renderer configuration or rendering.

Raised when a renderer cannot be found, messages cannot be rendered into a model prompt, or a response cannot be parsed back into messages. Inherits from `ValueError` for backward compatibility.