---
title: '`ignored-compiler-options`'
---

## Why This Error Occurred

Options under the `compiler` key in `next.config.js` only apply to the new Rust based compiler and will be ignored if Babel is used instead. This message will appear if Next.js detects a Babel configuration file while `compiler` options are configured in `next.config.js`

## Useful Links

- [Next.js Compiler](/docs/architecture/nextjs-compiler)