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errors/app-container-deprecated.mdx
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Lee Robinson
docs: Improve some of the error messages pages. (#52271)
06 июл 2023, 05:22
Не верифицирован
06 июл 2023, 05:22
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--- title: Addressing "App Container Deprecated" Error in Next.js description: This document guides developers on how to resolve the "App Container Deprecated" error in Next.js by updating their custom App component. --- ## Why This Error Occurred 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. From version `9.0.4` onwards, this functionality was moved up the component tree, rendering the `<Container>` component unnecessary in your custom `<App>`. ## Possible Ways to Fix It To resolve this issue, you need to remove the `<Container>` component from your custom `<App>` (`pages/_app.js`). **Before** ```jsx filename="pages/_app.js" import React from 'react' import App, { Container } from 'next/app' class MyApp extends App { render() { const { Component, pageProps } = this.props return ( <Container> <Component {...pageProps} /> </Container> ) } } export default MyApp ``` **After** ```jsx filename="pages/_app.js" import React from 'react' import App from 'next/app' class MyApp extends App { render() { const { Component, pageProps } = this.props return <Component {...pageProps} /> } } export default MyApp ``` After making this change, your custom `<App>` should work as expected without the `<Container>` component. ## Useful Links - [Custom App](/docs/pages/building-your-application/routing/custom-app)