小贝子编程

useEffect 错误:缩小了 React 错误 #321(GTM 实现而不是 google anaalitycs)



为什么我在next build编译期间收到缩小的 React 错误 #321？我搞砸了useEffect()吗？

抛出的部分错误：

Automatically optimizing pages .(node:763) ExperimentalWarning: The fs.promises API is experimental
(node:762) ExperimentalWarning: The fs.promises API is experimental
(node:761) ExperimentalWarning: The fs.promises API is experimental
Automatically optimizing pages .Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:10945:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:10950:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:7133:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:1023:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:1026:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:1031:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:1031:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:1041:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/index.js:899:16)
Error occurred prerendering page "/". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Automatically optimizing pages ..Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:21744:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:21749:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:14938:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:899:16)
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:21744:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:21749:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:14938:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:899:16)
Error occurred prerendering page "/XXX/XXX/syndic-copropriete". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Error occurred prerendering page "/XXX/XXX/aides-renovation-energetique". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Automatically optimizing pages ..Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:21744:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:21749:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:14938:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/[formationUrl]/[courseCode].js:899:16)
Error occurred prerendering page "/XXX". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:21165:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:21170:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:14443:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:899:16)
Error occurred prerendering page "/XXX/inscription". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Automatically optimizing pages .Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:21165:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:21170:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:14443:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:899:16)
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:21165:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:21170:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:14443:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/inscription.js:899:16)
Error occurred prerendering page "/XXX/inscription". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:20913:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:20918:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:14649:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:899:16)
Error occurred prerendering page "/XXX/merci". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Error occurred prerendering page "/XXX/inscription". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:6809:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:6814:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:4227:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:907:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:910:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:915:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:915:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:925:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:461:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/_error.js:783:16)
Error occurred prerendering page "/404". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Automatically optimizing pages ..Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:20913:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:20918:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:14649:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:899:16)
Error occurred prerendering page "/XXX/merci". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
Automatically optimizing pages ...Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Z (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:20913:404)
at module.exports.viRO.exports.useEffect (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:20918:356)
at App (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:14649:29)
at d (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1114:498)
at $a (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1117:16)
at a.b.render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1122:476)
at a.b.read (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1122:18)
at renderToString (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:1132:364)
at render (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:577:16)
at Object.renderPage (/XXX/XXX/XXX/XXX/.next/serverless/pages/[domainCode]/merci.js:899:16)
Error occurred prerendering page "/XXX/merci". Read more: https://err.sh/next.js/prerender-error
Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
> Build error occurred
Error: Export encountered errors
at _default (/usr/local/lib/node_modules/next/dist/export/index.js:19:1164)
at process._tickCallback (internal/process/next_tick.js:68:7)
Automatically optimizing pages .%

我尝试过：

在我的下一个 Js 应用程序上实现了 gtag。我遵循了Zeit的例子

https://github.com/zeit/next.js/tree/canary/examples/with-google-analytics

我精确地指出了一些重要的东西，这个例子向我们展示了如何添加谷歌analytics而不是GTM这是两件非常不同的事情，但你只需要改变：

// pages/_document.tsx
import Document, { Head, Main, NextScript } from 'next/document';
import { Fragment } from 'react';
export default class MyDocument extends Document {
setGoogleTags() {
return {
__html: `
(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-XXXXX');
`
};
}
render() {
return (
<html>
<Head>
<Fragment>
<script dangerouslySetInnerHTML={this.setGoogleTags()} />
</Fragment>
</Head>
<body>
{/* <Fragment> */}
{/* <!-- Google Tag Manager (noscript) --> */}
<noscript>
<iframe
src="https://www.googletagmanager.com/ns.html?id=GTM-XXXXXX"
height="0"
width="0"
style={{ display: 'none', visibility: 'hidden' }}
></iframe>
</noscript>
<Main />
<NextScript />
</body>
</html>
);
}
}

我刚刚更改了一件事，_app.js为 _app.tsx ：

//_app.tsx
import Router from 'next/router';
import React, { useEffect, ReactElement } from 'react';
import { AppProps } from 'next/app';
import '../CSS/index.css';
import * as gtag from '../lib/gtag';
import '@brainhubeu/react-carousel/lib/style.css';
export default function  App({ Component, pageProps }: AppProps): ReactElement {
useEffect(() => {
const handleRouteChange = (url: string) => {
gtag.pageview(url);
};
Router.events.on('routeChangeComplete', handleRouteChange);
return () => {
Router.events.off('routeChangeComplete', handleRouteChange);
};
}, []);
return <Component {...pageProps} />;
}

https://github.com/zeit/next.js/issues/160#issuecomment-634502987

这可能是因为您在页面上导入了两次 React：

import { useEffect } from 'react';
import Router from 'next/router';
import React, { ReactElement } from 'react';

应该只是：

import React, { useEffect, ReactElement } from 'react';
import Router from 'next/router';

编辑

尝试从本地项目中删除node_modules和.next文件夹，然后再次运行npm run build。这似乎为我解决了这个问题。

当自动导入导入的钩子(例如来自错误来源(useState时，我遇到了这个问题。如果您正在执行以下操作：

import { useState } from 'react/cjs/react.production.min';

你应该做：

import React, { useState} from 'react';

我认为发生这种情况有很多可能的原因。我遇到了这个问题，因为我用--legacy-peer-deps推动了一个软件包安装，因为它的对等依赖项卡在"react": 16.x上。

我不确定为什么这会完全破坏构建，但是删除有问题的包(并将其替换为我自己的分支版本，并增加了peerDependencies(使一切再次正常工作。

对于我(和其他人(来说，这是导致错误的Loom Chrome扩展程序。

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