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模块构建失败（来自./node_modules/mini-css-extract-plugin/dist/loader.js）：ReferenceError：文档未定义

[英]Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js): ReferenceError: document is not defined

 原文  2020-08-22 17:41:48  8   5    javascript/ css/ reactjs/ webpack/ sass

问题描述

Ok, So basically We use webpack to bundle our resources before deployment.好的，所以基本上我们在部署之前使用 webpack 来捆绑我们的资源。 However, now we want to also bundle our sass files through webpack is it simplifies our build process.it was going well, but now bundle.js is too big to deploy on production so I wanted to split bundle.js and styling files.但是，现在我们还想通过 webpack 捆绑我们的 sass 文件，它是否简化了我们的构建过程。它进展顺利，但现在 bundle.js 太大而无法在生产中部署，所以我想拆分 bundle.js 和样式文件。 I don't much know about plugins and all,so I searched a little bit and found that mini-css-extract-plugin lets me split style files into a new file.我对插件和所有东西都不太了解，所以我搜索了一下，发现 mini-css-extract-plugin 可以让我将样式文件拆分为一个新文件。 So I went and tweaked the web-pack.config file according to the docs of mini-css-extract-plugin but I am getting so many errors.因此，我根据 mini-css-extract-plugin 的文档调整了 web-pack.config 文件，但出现了很多错误。 Can somebody guide me to split styles file and extract it from bundle.js?有人可以指导我拆分 styles 文件并从 bundle.js 中提取它吗？

error:错误：

ERROR in ./node_modules/normalize.css/normalize.css
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ReferenceError: document is not defined
    at insertStyleElement (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:309:15)    at addStyle (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:424:13)
    at modulesToDom (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:297:18)      
    at module.exports.module.exports (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:455:25)
    at Object.<anonymous> (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:206:14)    at __webpack_require__ (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:21:30)    at D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:85:18
    at Object.<anonymous> (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\normalize.css\normalize.css:88:10) 
    at Module._compile (D:\ReactJs-Projects\Expensify-app\node_modules\v8-compile-cache\v8-compile-cache.js:194:30)
    at evalModuleCode (D:\ReactJs-Projects\Expensify-app\node_modules\mini-css-extract-plugin\dist\loader.js:61:10)
    at D:\ReactJs-Projects\Expensify-app\node_modules\mini-css-extract-plugin\dist\loader.js:166:21
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:343:11
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:681:15
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:15:1)
    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:678:31
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1423:35
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1414:32
    at eval (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:11:1)
    at D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\index.js:321:9
    at TaskRunner.run (D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\TaskRunner.js:48:7)
    at TerserPlugin.optimizeFn (D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\index.js:227:18)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:7:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1409:36
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1405:32
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at Compilation.seal (D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1342:27)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:675:18
 @ ./src/app.js 10:0-37

ERROR in ./node_modules/react-dates/lib/css/_datepicker.css
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ReferenceError: document is not defined
    at insertStyleElement (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:309:15)
    at addStyle (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:424:13)  
    at modulesToDom (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:297:18)
    at module.exports.module.exports (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:455:25)
    at Object.<anonymous> (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:206:14)
    at __webpack_require__ (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:21:30)
    at D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:85:18
    at Object.<anonymous> (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\node_modules\react-dates\lib\css\_datepicker.css:88:10)
    at Module._compile (D:\ReactJs-Projects\Expensify-app\node_modules\v8-compile-cache\v8-compile-cache.js:194:30)
    at evalModuleCode (D:\ReactJs-Projects\Expensify-app\node_modules\mini-css-extract-plugin\dist\loader.js:61:10)
    at D:\ReactJs-Projects\Expensify-app\node_modules\mini-css-extract-plugin\dist\loader.js:166:21
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:343:11
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:681:15
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:15:1)
    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:678:31
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1423:35
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1414:32
    at eval (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:11:1)
    at D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\index.js:321:9
    at TaskRunner.run (D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\TaskRunner.js:48:7)
    at TerserPlugin.optimizeFn (D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\index.js:227:18)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:7:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1409:36
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1405:32
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at Compilation.seal (D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1342:27)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:675:18
 @ ./src/components/ExpenseForm.js 27:0-45
 @ ./src/components/AddExpensePage.js
 @ ./src/routers/AppRouter.js
 @ ./src/app.js

ERROR in ./src/styles/styles.scss
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ReferenceError: document is not defined
    at insertStyleElement (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:309:15)
    at addStyle (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:424:13)
    at modulesToDom (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:297:18)
    at module.exports.module.exports (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:455:25)       
    at Object.<anonymous> (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:206:14)
    at __webpack_require__ (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:21:30)
    at D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:85:18
    at Object.<anonymous> (D:\ReactJs-Projects\Expensify-app\node_modules\style-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\css-loader\dist\cjs.js!D:\ReactJs-Projects\Expensify-app\node_modules\sass-loader\lib\loader.js!D:\ReactJs-Projects\Expensify-app\src\styles\styles.scss:88:10)
    at Module._compile (D:\ReactJs-Projects\Expensify-app\node_modules\v8-compile-cache\v8-compile-cache.js:194:30)
    at evalModuleCode (D:\ReactJs-Projects\Expensify-app\node_modules\mini-css-extract-plugin\dist\loader.js:61:10)
    at D:\ReactJs-Projects\Expensify-app\node_modules\mini-css-extract-plugin\dist\loader.js:166:21
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:343:11
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:681:15
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:15:1)
    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:678:31
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1423:35
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1414:32
    at eval (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:11:1)
    at D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\index.js:321:9
    at TaskRunner.run (D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\TaskRunner.js:48:7)
    at TerserPlugin.optimizeFn (D:\ReactJs-Projects\Expensify-app\node_modules\terser-webpack-plugin\dist\index.js:227:18)
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:7:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1409:36
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1405:32
    at AsyncSeriesHook.eval [as callAsync] (eval at create (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:6:1)    at AsyncSeriesHook.lazyCompileHook (D:\ReactJs-Projects\Expensify-app\node_modules\tapable\lib\Hook.js:154:20)
    at Compilation.seal (D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compilation.js:1342:27)
    at D:\ReactJs-Projects\Expensify-app\node_modules\webpack\lib\Compiler.js:675:18
 @ ./src/app.js 11:0-30

webpack.config.js: webpack.config.js：

const path = require("path");
//const ExtractTextPlugin = require("extract-text-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = env => {
    const isProduction = env === "production";
    //const CSSExtract = new ExtractTextPlugin("styles.css");

    console.log("env", env);
    return {
        entry: "./src/app.js",
        output: {
            path: path.join(__dirname, "public"),
            filename: "bundle.js",
        },
        module: {
            rules: [
                {
                    loader: "babel-loader",
                    test: /\.js$/,
                    exclude: /node_modules/,
                },
                {
                    test: /\.s?css$/,
                    use: [
                        {
                            loader: MiniCssExtractPlugin.loader,
                            options: {
                                publicPath: path.join(__dirname, "public"),
                            },
                        },
                        "style-loader",
                        "css-loader", 
                        "sass-loader", 
                    ],
                },
            ],
        },
        plugins: [
            new MiniCssExtractPlugin({
                filename: "styles.css",
            }),
        ],
        // plugins: [CSSExtract],
        devtool: isProduction ? "source-map" : "cheap-module-eval-source-map", 

        devServer: {
            contentBase: path.join(__dirname, "public"),
            historyApiFallback: true,
        },
    };
};

package.json: package.json：

{
    "name": "expensify-app",
    "version": "1.0.0",
    "main": "index.js",
    "author": "Viral Thaker",
    "license": "MIT",
    "scripts": {
        "serve": "live-server public/",
        "build:dev": "webpack",
        "build:prod": "webpack -p --env production",
        "dev-server": "webpack-dev-server",
        "start": "npm run dev-server",
        "test": "jest"
    },
    "dependencies": {
        "babel-cli": "^6.26.0",
        "babel-core": "^6.26.3",
        "babel-loader": "^8.1.0",
        "babel-plugin-transform-class-properties": "^6.24.1",
        "babel-plugin-transform-object-rest-spread": "^6.26.0",
        "css-loader": "^4.0.0",
        "jest": "^26.4.1",
        "live-server": "^1.2.1",
        "moment": "^2.27.0",
        "node-sass": "^4.14.1",
        "normalize.css": "^8.0.1",
        "react": "^16.13.1",
        "react-addons-shallow-compare": "^15.6.2",
        "react-dates": "^21.8.0",
        "react-dom": "^16.13.1",
        "react-modal": "^3.11.2",
        "react-redux": "^7.2.1",
        "react-router-dom": "^5.2.0",
        "redux": "^4.0.5",
        "sass-loader": "^6.0.6",
        "style-loader": "^1.2.1",
        "uuid": "^8.3.0",
        "validator": "^13.1.1"
    },
    "devDependencies": {
        "@babel/core": "^7.10.5",
        "@babel/preset-env": "^7.10.4",
        "@babel/preset-react": "^7.10.4",
        "extract-text-webpack-plugin": "^4.0.0-beta.0",
        "mini-css-extract-plugin": "^0.10.0",
        "webpack": "^4.44.1",
        "webpack-cli": "^3.3.12",
        "webpack-dev-server": "^3.11.0"
    }
}

5 个解决方案

解决方案1
 21 已采纳  2020-08-23 06:04:27

Ok, nevermind as Camilo suggested there was this "stye-loader" which was somehow conflicting to the plugin but anyway as I am separating CSS files I don't need inline CSS so I completely removed it from the loader and the error was completely gone and it gave me a new build with separate CSS file好吧，没关系，因为 Camilo 建议有这个“stye-loader”，它与插件有某种冲突，但无论如何，当我分离 CSS 文件时，我不需要内联 CSS 所以我将它从加载器中完全删除，错误完全消失了它给了我一个带有单独 CSS 文件的新版本

Anyone, having the same problem in future just look for your loader whether its conflicting任何人，将来遇到同样的问题，只需寻找您的装载机是否冲突

解决方案2
 0  2021-03-08 09:57:48

I had such an issue with my angular based project, I have did the following steps and it is fixed:我的基于 angular 的项目遇到了这样的问题，我执行了以下步骤并且已修复：

  1. reinstall angular-cli重新安装 angular-cli
  2. delete node_modules folder, and install it (npm install)删除 node_modules 文件夹，并安装它（npm install）

解决方案3
 0  2021-08-14 08:03:26

just replace the following in webpack.mix.js只需替换 webpack.mix.js 中的以下内容

   mix.js('resources/js/app.js', 'public/js')
   .sass('resources/css/app.css', 'public/css')
   .sourceMaps();

to至

    mix.js('resources/js/app.js', 'public/js')
       .sass('resources/sass/app.scss', 'public/css');

解决方案4
 0  2022-01-21 19:22:53

I had exactly the same error on Gatsby when I tried to add fonts under src folder.当我尝试在 src 文件夹下添加 fonts 时，我在 Gatsby 上遇到了完全相同的错误。 The reason for the alert originated in my improper path for importing.警报的原因源于我不正确的导入路径。 I had appended ".." to the path inside the main CSS file, which was redundant - it was reading from the public folder.我已将“..”附加到主 CSS 文件中的路径，这是多余的 - 它是从公共文件夹中读取的。 So, I believe going over the paths on imports may indicate the faulty code.因此，我相信检查导入路径可能表明错误代码。

解决方案5
 -3  2021-09-06 10:25:14

Try the cli command below试试下面的cli命令

npm-install

it has worked for me.它对我有用。

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