# AMP Export Validation #### Why This Error Occurred During export we validate AMP pages using [amphtml-validator](https://www.npmjs.com/package/amphtml-validator). Errors received from the validator will fail the export. Validation errors will cause pages to not be [indexed by AMP Caches](https://www.ampproject.org/docs/fundamentals/how_cached). #### Possible Ways to Fix It Look at the error messages and follow their appropriate links to learn more about the error and how to correct the problem. ### Useful Links - [AMP HTML Specification](https://www.ampproject.org/docs/fundamentals/spec)