[英]Webpack & Babel - Unable to run dev-server after nodejs and yarn update
I am upgrading Node.js from 8.11.1 to 12.20.0 and yarn from 1.22.4 to 2.4.0.我正在将 Node.js 从 8.11.1 升级到 12.20.0,将纱线从 1.22.4 升级到 2.4.0。 My webpack version is 4.41.2.
我的 webpack 版本是 4.41.2。
I have upgraded Node.js using nvm and by running the commands below and then updated babel.rc我已经使用 nvm 升级了 Node.js 并运行以下命令,然后更新了 babel.rc
yarn set version berry
yarn rebuild node-sass
yarn add core-js@3
yarn remove @babel/polyfill
I run my dev server by invoking "dev-server": "cross-env NODE_ENV=development webpack-dev-server --host 127.0.0.1 --port 8080"
When trying to run my dev server () I get the below errors我通过调用
"dev-server": "cross-env NODE_ENV=development webpack-dev-server --host 127.0.0.1 --port 8080"
尝试运行我的开发服务器()时出现以下错误
ERROR in ./.yarn/$$virtual/webpack-dev-server-virtual-d551ff68b6/0/cache/webpack-dev-server-npm-3.9.0-e9c2d8aa12-bb763e0d55.zip/node_modules/webpack-dev-server/client/overlay.js
Module not found: Error: Can't resolve 'ansi-html' in ...
ERROR in multi ./src/app.js
Module not found: Error: Can't resolve 'babel-loader' in 'C:\Users\kermit\Documents\Projects\my_app'
@ multi ./src/app.js main[0]
ERROR in ./.yarn/$$virtual/webpack-dev-server-virtual-d551ff68b6/0/cache/webpack-dev-server-npm-3.9.0-e9c2d8aa12-bb763e0d55.zip/node_modules/webpack-dev-server/client/overlay.js
Module not found: Error: Can't resolve 'html-entities' in ...
I have tried to install babel-loader in "Dependencies" with the same result.我试图在“依赖项”中安装 babel-loader,结果相同。
Why cannot babel-loader be resolved?为什么不能解析 babel-loader?
package.json
"devDependencies": {
"@babel/cli": "^7.7.4",
"@babel/core": "^7.7.4",
"@babel/plugin-proposal-class-properties": "^7.7.4",
"@babel/plugin-proposal-nullish-coalescing-operator": "^7.12.1",
"@babel/plugin-proposal-object-rest-spread": "^7.7.4",
"@babel/plugin-proposal-optional-chaining": "^7.10.4",
"@babel/preset-env": "^7.7.4",
"@babel/preset-react": "^7.7.4",
"babel-core": "^7.0.0-bridge.0",
"babel-jest": "22.4.3",
"babel-loader": "^8.2.2",
"core-js": "3",
"cross-env": "5.0.5",
"css-loader": "^3.2.0",
"dotenv": "4.0.0",
"enzyme": "^3.3.0",
"enzyme-adapter-react-16": "1.1.1",
"enzyme-to-json": "^3.4.3",
Old babel.rc
{
"presets": [
"@babel/preset-env",
"@babel/preset-react"
],
"plugins": [
"@babel/plugin-proposal-class-properties",
"@babel/plugin-proposal-object-rest-spread",
"@babel/plugin-proposal-optional-chaining",
"@babel/plugin-proposal-nullish-coalescing-operator",
"emotion"
]
}
New babel.rc
{
"presets": [
["@babel/preset-env", {
"useBuiltIns": "usage",
"corejs": "3.6"
}],
"@babel/preset-react"
],
webpackConfig.js
// config.entry = ['@babel/polyfill', './src/app.js'] <-- removed after installation of core-js
config.entry = ['./src/app.js']
config.module = {
rules: [
{
test: /\.(js|jsx)$/,
exclude: [
/node_modules/,
/firebase-functions/,
/tests/
],
use: {
loader: 'babel-loader'
}
},
//...
return config
I cannot figure out where the error origins from.我无法弄清楚错误的来源。 What is wrong with my config?
我的配置有什么问题?
Kind regards /K亲切的问候/K
By downgrading to Yarn 1.22.5 and updating my config I successfully managed to run the webpack-dev-server again.通过降级到 Yarn 1.22.5 并更新我的配置,我成功地再次运行了 webpack-dev-server。
babel.rc
{
"presets": [
["@babel/preset-env", {
"useBuiltIns": "usage",
"corejs": "3.6"
}]
],
"plugins": [
"@babel/plugin-transform-runtime",
"@babel/plugin-proposal-class-properties",
"@babel/plugin-proposal-object-rest-spread",
"@babel/plugin-proposal-optional-chaining",
"@babel/plugin-proposal-nullish-coalescing-operator",
"emotion"
]
}
webpack.config.js
config.entry = ['./src/app.js']
//...
config.module = {
rules: [
{
test: /\.(js|jsx)$/,
exclude: [
/node_modules/,
/firebase-functions/,
/tests/
],
use: {
loader: 'babel-loader',
options: {
presets: ['@babel/react', '@babel/preset-env']
}
}
},
//...
return config
package.json
"devDependencies": {
"@babel/cli": "^7.7.4",
"@babel/core": "^7.7.4",
"@babel/plugin-proposal-class-properties": "^7.7.4",
"@babel/plugin-proposal-nullish-coalescing-operator": "^7.12.1",
"@babel/plugin-proposal-object-rest-spread": "^7.7.4",
"@babel/plugin-proposal-optional-chaining": "^7.10.4",
"@babel/plugin-transform-runtime": "^7.12.1",
"@babel/preset-env": "^7.7.4",
"@babel/preset-react": "^7.7.4",
"@babel/runtime": "^7.12.5",
"babel-jest": "22.4.3",
"babel-loader": "^8.2.2",
Thanks to chenxsan for pointing me in the right direction!感谢chenxsan为我指明了正确的方向!
/K /K
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