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vercel__next.js/errors/next-image-unconfigured-qualities.mdx
Delba de Oliveira 3bf570d84d Docs IA 2.0: Images (#78769)
Closes:
- https://linear.app/vercel/issue/DOC-4626/images
- https://linear.app/vercel/issue/DOC-4610/split-image-and-font-pages

Redirects: https://github.com/vercel/next.js/pull/78769

**Housekeeping:** 
- Deletes BYA images page
- Creates relevant getting started docs in `/pages`
- Splits "Images and Fonts" into "Images" and "Fonts" pages to allow us
to add more context to each page in the future

**API reference**: 
- Improves image API reference to follow more of a consistent format and
language
- Adds examples

**Follow-up:** https://github.com/vercel/next.js/pull/78857
- Create a Deep Dive Guide on how image optimization works

---------

Co-authored-by: Rich Haines <hello@richardhaines.dev>
2025-05-08 13:11:38 +01:00

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---
title: '`next/image` Un-configured qualities'
---
## Why This Error Occurred
One of your pages that leverages the `next/image` component, passed a `quality` value that isn't defined in the `images.qualities` property in `next.config.js`.
## Possible Ways to Fix It
Add an entry to `images.qualities` array in `next.config.js` with the expected value. For example:
```js filename="next.config.js"
module.exports = {
images: {
qualities: [25, 50, 75],
},
}
```
## Useful Links
- [Image Optimization Documentation](/docs/pages/api-reference/components/image)
- [Qualities Config Documentation](/docs/pages/api-reference/components/image#qualities)