6527d29c8a
Now that we've improved `/messages` (https://github.com/vercel/next.js/pull/52038), we'd like to start updating some of the content as well 🙏
56 lines
1.5 KiB
Text
56 lines
1.5 KiB
Text
---
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title: Addressing "App Container Deprecated" Error in Next.js
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description: This document guides developers on how to resolve the "App Container Deprecated" error in Next.js by updating their custom App component.
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---
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## Why This Error Occurred
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The "App Container Deprecated" error usually occurs when you are using the `<Container>` component in your custom `<App>` (`pages/_app.js`). Prior to version `9.0.4` of Next.js, the `<Container>` component was used to handle scrolling to hashes.
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From version `9.0.4` onwards, this functionality was moved up the component tree, rendering the `<Container>` component unnecessary in your custom `<App>`.
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## Possible Ways to Fix It
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To resolve this issue, you need to remove the `<Container>` component from your custom `<App>` (`pages/_app.js`).
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**Before**
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```jsx filename="pages/_app.js"
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import React from 'react'
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import App, { Container } from 'next/app'
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class MyApp extends App {
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render() {
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const { Component, pageProps } = this.props
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return (
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<Container>
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<Component {...pageProps} />
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</Container>
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)
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}
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}
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export default MyApp
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```
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**After**
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```jsx filename="pages/_app.js"
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import React from 'react'
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import App from 'next/app'
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class MyApp extends App {
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render() {
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const { Component, pageProps } = this.props
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return <Component {...pageProps} />
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}
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}
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export default MyApp
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```
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After making this change, your custom `<App>` should work as expected without the `<Container>` component.
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## Useful Links
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- [Custom App](/docs/pages/building-your-application/routing/custom-app)
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