NextJS -构建不工作，但开发模式

Question

当我运行npm run dev时，我的项目启动了。当我运行npm run build时，它失败了，下面粘贴了以下错误。

奇怪的是，我找到了它失败的第三方包。我可以删除它，它可以成功构建。

生成失败的包如下:

import dayGridPlugin from "@fullcalendar/daygrid"
import timeGridPlugin from "@fullcalendar/timegrid"
import interactionPlugin from "@fullcalendar/interaction"

误差

> Build error occurred
TypeError: Class extends value undefined is not a constructor or null
at Object.__extends (/Users/asdf/fdsa/node_modules/tslib/tslib.js:70:19)
at /Users/asdf/fdsa/.next/server/pages/schedule.js:18070:9
at Object.mNTd (/Users/asdf/fdsa/.next/server/pages/schedule.js:18195:2)
at __webpack_require__ (/Users/asdf/fdsa/.next/server/pages/schedule.js:23:31)
at Module.QKeh (/Users/asdf/fdsa/.next/server/pages/schedule.js:15357:16)
at __webpack_require__ (/Users/asdf/fdsa/.next/server/pages/schedule.js:23:31)
at Object.3 (/Users/asdf/fdsa/.next/server/pages/schedule.js:195:18)
at __webpack_require__ (/Users/asdf/fdsa/.next/server/pages/schedule.js:23:31)
at /Users/asdf/fdsa/.next/server/pages/schedule.js:91:18
at Object.<anonymous> (/Users/asdf/fdsa/.next/server/pages/schedule.js:94:10) {
type: 'TypeError'
}

bable.config.js

module.exports = {
presets: [
// "@babel/preset-react", // necessary for all .jsx files
"@babel/preset-env",
[
"@babel/preset-react",
{
runtime: "automatic",
},
],
],
plugins: ["@babel/plugin-transform-runtime"],
// fullcalendar attempts to import its own CSS files, but next.js does not allow this.
// throw away these statements before they arrive at next.js,
// but you'll need to import them manually in pages/_app.jsx.
// will also work for any other 3rd-party packages that attempt to do this.
overrides: [
{
include: ["./node_modules"],
plugins: [
[
"babel-plugin-transform-require-ignore",
{
extensions: [".css"],
},
],
],
},
],
}

next.config.js

// for transpiling all ESM @fullcalendar/* packages
// also, for piping fullcalendar thru babel (to learn why, see babel.config.js)
const withTM = require("next-transpile-modules")([
"@fullcalendar/core",
"@fullcalendar/common",
"@fullcalendar/daygrid",
"@fullcalendar/timegrid",
])
module.exports = withTM({
// any other general next.js settings
})

Answer 1

我通过使fullCalendar库只在浏览器中加载来解决这个问题。

所以我把fullCalendar移动到它自己的组件中，只有当它被挂载时才会加载。

// typeformSurvey.js
import React, { useRef, useEffect } from "react"
import * as typeformEmbed from "@typeform/embed"
function typeformSurvey() {
const elementRef = useRef(null)
useEffect(() => {
typeformEmbed.makeWidget(
elementRef.current,
"https://form.typeform.com/to/XXXXXX"
)
})
return <div ref={elementRef} style={{ width: "100%", height: "500px" }} />
}
export default typeformSurvey

这是用Next的" Next/dynamic"功能。

// page/calendar.js
...
import dynamic from "next/dynamic"

const DynamicComponentWithNoSSR = dynamic(
() => import("../../common/typeformSurvey"),
{
ssr: false,
}
)
....
function calendar() {
return (
<div>
<DynamicComponentWithNoSSR />
</div>
)
}