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「require is not defined」webpack 2を使用

Webpackを使用してアプリをバンドルするのに問題があり、サイトで同様の問題を読んでいますが、すべての推奨事項を試しましたが、何が間違っているのかわかりません。

すべてがうまくバンドルされています。ただし、ブラウザを開くと、次のエラーが表示されます。
参照されていないReferenceError：requireが定義されていません

webpack-dist.conf.js

const webpack = require('webpack');
const conf = require('./gulp.conf');
const path = require('path');

const HtmlWebpackPlugin = require('html-webpack-plugin');
const FailPlugin = require('webpack-fail-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const pkg = require('../package.json');
const autoprefixer = require('autoprefixer');
const nodeExternals = require('webpack-node-externals');

module.exports = {
  module: {
    loaders: [
      {
        test: /\.json$/,
        loaders: [
          'json-loader'
        ]
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'eslint-loader',
        enforce: 'pre'
      },
      {
        test: /\.(css|scss)$/,
        loaders: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: 'css-loader?minimize!sass-loader!postcss-loader'
        })
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loaders: [
          'ng-annotate-loader',
          'babel-loader'
        ]
      },
      {
        test: /\.html$/,
        loaders: [
          'html-loader'
        ]
      }
    ]
  },
  plugins: [
    new webpack.optimize.OccurrenceOrderPlugin(),
    new webpack.NoEmitOnErrorsPlugin(),
    FailPlugin,
    new HtmlWebpackPlugin({
      template: conf.path.src('index.html')
    }),
    new webpack.optimize.UglifyJsPlugin({
      output: {comments: false},
      compress: {unused: true, dead_code: true, warnings: false} // eslint-disable-line camelcase
    }),
    new ExtractTextPlugin('index-[contenthash].css'),
    new webpack.optimize.CommonsChunkPlugin({name: 'vendor'}),
    new webpack.LoaderOptionsPlugin({
      options: {
        postcss: () => [autoprefixer]
      }
    })
  ],
  target: 'node',
  externals: [nodeExternals()],
  output: {
    path: path.join(process.cwd(), conf.paths.dist),
    filename: '[name]-[hash].js'
  },
  entry: {
    app: `./${conf.path.src('index')}`,
    vendor: Object.keys(pkg.dependencies)
  }
};

package.json

{
  "dependencies": {
  "angular": "^1.6.2",
  "angular-ui-router": "1.0.0-beta.3",
  "body-parser": "^1.17.2",
  "cookie-parser": "^1.4.3",
  "debug": "^2.6.8",
  "express": "^4.15.3",
  "morgan": "^1.8.2",
  "pug": "^2.0.0-rc.2"
},
"devDependencies": {
  "@types/angular": "^1.6.6",
  "@types/angular-mocks": "^1.5.9",
  "@types/angular-ui-router": "^1.1.36",
  "@types/jquery": "^2.0.40",
  "angular-mocks": "^1.6.2",
  "autoprefixer": "^6.7.3",
  "babel-core": "^6.23.1",
  "babel-eslint": "^7.1.1",
  "babel-loader": "^6.3.2",
  "babel-plugin-istanbul": "^4.0.0",
  "babel-polyfill": "^6.23.0",
  "babel-preset-es2015": "^6.22.0",
  "babel-preset-es2017": "^6.24.1",
  "bootstrap": "^4.0.0-alpha.6",
  "browser-sync": "^2.18.8",
  "browser-sync-spa": "^1.0.3",
  "css-loader": "^0.26.4",
  "del": "^2.2.2",
  "es6-shim": "^0.35.3",
  "eslint": "^3.15.0",
  "eslint-config-angular": "^0.5.0",
  "eslint-config-xo-space": "^0.15.0",
  "eslint-loader": "^1.6.1",
  "eslint-plugin-angular": "^1.6.1",
  "eslint-plugin-babel": "^4.0.1",
  "extract-text-webpack-plugin": "^2.0.0-rc.3",
  "file-loader": "^0.11.1",
  "font-awesome": "^4.7.0",
  "gulp": "gulpjs/gulp#4ed9a4a3275559c73a396eff7e1fde3824951ebb",
  "gulp-angular-filesort": "^1.1.1",
  "gulp-angular-templatecache": "^2.0.0",
  "gulp-filter": "^5.0.0",
  "gulp-htmlmin": "^3.0.0",
  "gulp-hub": "frankwallis/gulp-hub#d461b9c700df9010d0a8694e4af1fb96d9f38bf4",
  "gulp-insert": "^0.5.0",
  "gulp-ng-annotate": "^2.0.0",
  "gulp-sass": "^3.1.0",
  "gulp-util": "^3.0.8",
  "html-loader": "^0.4.4",
  "html-webpack-plugin": "^2.28.0",
  "jasmine": "^2.5.3",
  "jquery": "^3.2.1",
  "json-loader": "^0.5.4",
  "karma": "^1.4.1",
  "karma-angular-filesort": "^1.0.2",
  "karma-coverage": "^1.1.1",
  "karma-jasmine": "^1.1.0",
  "karma-junit-reporter": "^1.2.0",
  "karma-ng-html2js-preprocessor": "^1.0.0",
  "karma-phantomjs-launcher": "^1.0.2",
  "karma-phantomjs-shim": "^1.4.0",
  "karma-webpack": "^2.0.2",
  "mdbootstrap": "^4.3.2",
  "ng-annotate-loader": "^0.2.0",
  "node-sass": "^4.5.0",
  "phantomjs-prebuilt": "^2.1.14",
  "postcss-loader": "^1.3.1",
  "sass-loader": "^6.0.1",
  "style-loader": "^0.13.1",
  "tether": "^1.4.0",
  "url-loader": "^0.5.8",
  "webpack": "^2.2.1",
  "webpack-fail-plugin": "^1.0.5",
  "webpack-node-externals": "^1.6.0"
},
"scripts": {
"start": "node app.js",
"build": "gulp",
"serve": "gulp serve",
"serve:dist": "gulp serve:dist",
"test": "gulp test",
"test:auto": "gulp test:auto"
},
"eslintConfig": {
"globals": {
  "expect": true
},
"root": true,
"env": {
  "browser": true,
  "jasmine": true
},
"parser": "babel-eslint",
"extends": [
  "xo-space/esnext"
  ]
}
}

誰かが助けてくれたらありがたいです。

javascriptwebpackbabel
8
Cesar Jr Rodriguez

ノード+エクスプレスとクライアント側で使用するホストされたウィジェットを使用してバックエンドを構築するときにこの問題をヒットします。私のwebpack構成は、バックエンド用とフロントエンド用の2つに分かれています。

const webpack = require('webpack');
const path = require('path');
const nodeExternals = require('webpack-node-externals');

const config = {
  // set to false because __dirname resolving to / instead of absolute path when
  // built using webpack
  node: {
    __dirname: false
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['es2015']
          }
        }
      }
    ]
  },
  // set to development to read .env.local variables
  mode: 'development'
};

const serverConfig = Object.assign({}, config, {
  // set target to node to fix build warnings
  target: 'node',
  name: 'server',
  entry: __dirname + '/src/index.js',
  output: {
    path: path.resolve(__dirname + '/dist'),
    filename: 'index.js'
  },
  // webpack-node-externals package used to exclude other packages like express
  // in the final bundle.js
  externals: [nodeExternals()]
});

// widget.js file served from dist/widget
const widgetConfig = Object.assign({}, config, {
  // set target to web for use in browsers
  target: 'web',
  name: 'widget',
  entry: __dirname + '/widget/index.js',
  output: {
    path: path.resolve(__dirname + '/dist/widget/js'),
    filename: 'widget.js'
  }
});

module.exports = [widgetConfig, serverConfig];
3
David

構成の一部を変更する必要があります。

target: 'web', // which is by default // externals: [nodeExternals()], remove this as it is causing problem

9
Akansha Srivastava

間違った target を使用しています。

target: 'node'

これは、バンドルがブラウザーではなくNode.js（サーバー側）プログラムで使用されることを意図していることを意味します。 webに変更するか、その行を削除することができます（webがデフォルトであるため）。

8
robertklep