---
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)