【发布时间】：2020-02-20 23:07:06
【问题描述】：
我真的很难用这个。我热衷于进入 webpack 并从头开始进行设置，我的大部分构建都是在填充 index.html 文件的部分之外构建的。 Webpack 会抛出这样的错误
ERROR in Error: undefined:1
undefine__webpack_require__i/*! !../node_modules/lodash/lodash.js
我也遇到了类似的 css-loader 错误
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
SyntaxError: Unexpected identifier
at Object../node_modules/css-loader/dist/cjs.js
这个错误的奇怪之处在于路径的开始应该是 ./node_modules 从 webpack 构建的位置开始，但由于某种原因它假设它的 ../node_modules
如果有人可以猜测为什么会发生这种情况，完整的错误如下所示
ERROR in Error: undefined:1
undefine__webpack_require__i/*! !../node_modules/lodash/lodash.js */ "./node_modules/lodash/lodash.js"defined undefined=undefined undefinedrundefinedeundefinedqundefineduundefinediundefinedrundefinedeundef
ined(undefined"undefined!undefined!undefined.undefined.undefined/undefinednundefinedoundefineddundefinedeundefined_undefinedmundefinedoundefineddundefineduundefinedlundefinedeundefinedsundefined/undefinedl
undefinedoundefineddundefinedaundefinedsundefinedhundefined/undefinedlundefinedoundefineddundefinedaundefinedsundefinedhundefined.undefinedjundefinedsundefined"undefined)undefined;undefinedmundefinedoundef
ineddundefineduundefinedlundefinedeundefined.undefinedeundefinedxundefinedpundefinedoundefinedrundefinedtundefinedsundefined undefined=undefined undefinedfundefineduundefinednundefinedcundefinedtundefinedi
undefinedoundefinednundefined undefined(undefinedtundefinedeundefinedmundefinedpundefinedlundefinedaundefinedtundefinedeundefinedPundefinedaundefinedrundefinedaundefinedmundefinedsundefined)
SyntaxError: Unexpected string
- template.html:97 Object../node_modules/html-webpack-plugin/lib/loader.js!./src/template.html
C:/Random_Personal_Projects/experimental_cloud_storage/src/template.html:97:1
- template.html:21 __webpack_require__
C:/Random_Personal_Projects/experimental_cloud_storage/src/template.html:21:30
- template.html:85
C:/Random_Personal_Projects/experimental_cloud_storage/src/template.html:85:18
- template.html:88
C:/Random_Personal_Projects/experimental_cloud_storage/src/template.html:88:10
- index.js:247 HtmlWebpackPlugin.evaluateCompilationResult
[experimental_cloud_storage]/[html-webpack-plugin]/index.js:247:28
- index.js:161
[experimental_cloud_storage]/[html-webpack-plugin]/index.js:161:23
webpack 配置如下所示
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const StyleLintPlugin = require('stylelint-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = {
entry: ['babel-polyfill', './src/index.jsx'],
target: 'web',
resolve: {
modules: ['node_modules'],
extensions: ['.js', '.jsx'],
},
output: {
path: path.resolve(__dirname, 'wwwroot'),
filename: 'bundle.js',
publicPath: '/',
},
module: {
rules: [
{
enforce: 'pre',
test: /\.(js|jsx)$/,
exclude: /node_modules/,
loader: 'eslint-loader',
},
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
loader: 'babel-loader',
options: {
cacheDirectory: true,
},
},
{
test: /\.svg$/,
loader: 'svg-inline-loader',
},
{
test: /\.json$/,
use: ['json-loader'],
type: 'javascript/auto',
},
{
test: /\.(png|jpg|gif)$/,
use: [
{
loader: 'url-loader',
options: {
fallback: 'file-loader',
name: '[name].[ext]',
outputPath: 'assets/',
publicPath: '/assets/',
},
},
],
},
{
test: /\.s?css$/,
use: [
MiniCssExtractPlugin.loader,
{
loader: 'css-loader',
options: {
sourceMap: true,
},
},
{
loader: 'postcss-loader',
options: {
sourceMap: true,
},
},
{
loader: 'fast-sass-loader',
options: {
sourceMap: true,
data: '@import "app.scss";',
includePaths: [path.resolve(__dirname, 'src/styles/sass')],
},
},
],
},
],
},
devtool: 'cheap-module-eval-source-map',
plugins: [
new StyleLintPlugin({
syntax: 'scss',
}),
new MiniCssExtractPlugin({
filename: 'style.bundle.css',
}),
new HtmlWebpackPlugin({
template: './src/template.html',
filename: './index.html',
favicon: './src/assets/img/favicon.png',
}),
],
};
我的 babel 配置是这样的
module.exports = {
presets: [
[
'@babel/preset-env', {
targets: { esmodules: true },
},
],
'@babel/preset-react',
],
plugins: [
'@babel/plugin-transform-runtime',
'@babel/plugin-proposal-object-rest-spread',
['inline-react-svg', {
svgo: {
plugins: [
{
removeTitle: true,
},
{
removeAttrs: { attrs: '(data-name)' },
},
],
},
}],
],
};
package.json 看起来像这样
{
"name": "experimental_cloud_storage",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^4.2.4",
"@testing-library/react": "^9.4.0",
"@testing-library/user-event": "^7.2.1",
"babel-polyfill": "^6.26.0",
"bootstrap": "^4.4.1",
"firebase": "^7.8.2",
"node-sass": "^4.13.1",
"prop-types": "^15.7.2",
"react": "^16.12.0",
"react-dom": "^16.12.0",
"react-redux": "^7.2.0",
"react-router-dom": "^5.1.2",
"react-scripts": "3.4.0",
"redux": "^4.0.5",
"redux-persist": "^6.0.0",
"redux-thunk": "^2.3.0",
"sweetalert": "^2.1.2",
"sweetalert2": "^9.7.2"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"watch": "webpack --config webpack.dev.js --watch"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"@babel/core": "^7.6.4",
"@babel/plugin-proposal-object-rest-spread": "^7.6.2",
"@babel/plugin-transform-runtime": "^7.6.2",
"@babel/preset-env": "^7.6.3",
"@babel/preset-react": "^7.6.3",
"autoprefixer": "^8.4.1",
"babel-core": "^7.0.0-bridge.0",
"babel-eslint": "^10.0.3",
"babel-loader": "^8.0.6",
"babel-plugin-inline-react-svg": "^1.1.0",
"babel-plugin-lodash": "^3.3.4",
"copy-webpack-plugin": "^4.6.0",
"css-loader": "^3.2.0",
"enzyme": "^3.11.0",
"enzyme-adapter-react-16": "^1.15.2",
"eslint": "^6.5.1",
"eslint-config-airbnb": "^18.0.1",
"eslint-loader": "^3.0.2",
"eslint-plugin-import": "^2.18.2",
"eslint-plugin-jsx-a11y": "^6.2.3",
"eslint-plugin-react": "^7.16.0",
"fast-sass-loader": "^1.5.0",
"file-loader": "^1.1.11",
"html-webpack-plugin": "^3.2.0",
"jest": "^23.0.0",
"jest-cli": "^23.0.0",
"jest-html-reporter": "^2.5.0",
"jest-localstorage-mock": "^2.4.0",
"jest-teamcity-reporter": "^0.9.0",
"json-loader": "^0.5.7",
"mini-css-extract-plugin": "^0.4.5",
"mock-socket": "^8.0.5",
"node-sass": "^4.11.0",
"optimize-css-assets-webpack-plugin": "^5.0.1",
"postcss-loader": "^2.1.4",
"precss": "^4.0.0",
"react-inlinesvg": "^1.1.7",
"react-svg-loader": "^3.0.3",
"redux-mock-store": "^1.5.4",
"resolve-url-loader": "^3.1.0",
"speed-measure-webpack-plugin": "^1.3.1",
"style-loader": "^0.21.0",
"stylelint": "^9.10.1",
"stylelint-config-airbnb": "0.0.0",
"stylelint-config-recommended-scss": "^3.2.0",
"stylelint-order": "^0.8.1",
"stylelint-scss": "^3.5.4",
"stylelint-webpack-plugin": "^0.10.4",
"svg-inline-loader": "^0.8.0",
"terser-webpack-plugin": "^2.1.3",
"url-loader": "^2.2.0",
"webpack": "^4.41.0",
"webpack-cli": "^3.3.9",
"webpack-merge": "^4.2.2",
"webpack-plugin-replace": "^1.2.0"
}
}
提前干杯，因为这个已经让我卡了一个多小时，似乎没有任何技巧可以从配置的解析部分中的模块文件夹（包括模块：['node_modules']）到各种各样的不同的东西。
环顾四周，我认为它与 HtmlWebpackPlugin 有关，但我可能完全错了
【问题讨论】：
标签： javascript reactjs web webpack build