# tinker_cookbook.exceptions.CheckpointError

## *class* [**tinker_cookbook.exceptions.CheckpointError**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/exceptions.py#L143)(*[TrainingError](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/exceptions/trainingerror/index.md)*)

An error related to saving, loading, or resuming checkpoints.

Raised when a checkpoint file is missing, corrupted, or when the save/load operation fails.