# tinker_cookbook.exceptions.WeightsDownloadError

## *class* [**tinker_cookbook.exceptions.WeightsDownloadError**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/exceptions.py#L173)(*[WeightsError](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/exceptions/weightserror/index.md), RuntimeError*)

Failed to download weights from Tinker storage.

Raised when the Tinker service cannot be reached, the checkpoint path is invalid, or the download archive is corrupt. Inherits from `RuntimeError` because these are operational failures.