Créer une réaction-app build de production ne fonctionne pas dans Android (4.0.x) Webview

Question

Je suis en train d'ouvrir mon site dans Android React (4.0.x) Webview mais il me donne des erreurs comme

1) E/Console Web: Uncaught SyntaxError: Mot réservé inattendu du mode strict au niveau du fournisseur. somehashcode .js

2) E/Console Web: Uncaught TypeError: Impossible de définir la propriété 'emulateTransitionEnd' undefined à l'application. somehashcode .js

mes webpack.config.prod.js

// @remove-on-eject-begin 
/** 
* Copyright (c) 2015-present, Facebook, Inc. 
* All rights reserved. 
* 
* This source code is licensed under the BSD-style license found in the 
* LICENSE file in the root directory of this source tree. An additional grant 
* of patent rights can be found in the PATENTS file in the same directory. 
*/ 
// @remove-on-eject-end 
'use strict'; 

const autoprefixer = require('autoprefixer'); 
const path = require('path'); 
const webpack = require('webpack'); 
const HtmlWebpackPlugin = require('html-webpack-plugin'); 
const ExtractTextPlugin = require('extract-text-webpack-plugin'); 
const ManifestPlugin = require('webpack-manifest-plugin'); 
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin'); 
const SWPrecacheWebpackPlugin = require('sw-precache-webpack-plugin'); 
// const eslintFormatter = require('react-dev-utils/eslintFormatter'); 
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin'); 
const CriticalPlugin = require('webpack-plugin-critical').CriticalPlugin; 
var LodashModuleReplacementPlugin = require('lodash-webpack-plugin'); 
// var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin; 
const paths = require('./paths'); 
const getClientEnvironment = require('./prod-env'); 


// Webpack uses `publicPath` to determine where the app is being served from. 
// It requires a trailing slash, or the file assets will get an incorrect path. 
// const publicPath = paths.servedPath; 
const publicPath = '/'; 
// Some apps do not use client-side routing with pushState. 
// For these, "homepage" can be set to "." to enable relative asset paths. 
const shouldUseRelativeAssetPaths = publicPath === './'; 
// `publicUrl` is just like `publicPath`, but we will provide it to our app 
// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript. 
// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz. 
const publicUrl = publicPath.slice(0, -1); 
// Get environment variables to inject into our app. 
const env = getClientEnvironment(''); 

// Assert this just to be safe. 
// Development builds of React are slow and not intended for production. 
if (env['process.env'].NODE_ENV !== '"production"') { 
    throw new Error('Production builds must have NODE_ENV=production.'); 
} 

// Note: defined here because it will be used more than once. 
const cssFilename = 'static/css/[name].[contenthash:8].css'; 

// ExtractTextPlugin expects the build output to be flat. 
// (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27) 
// However, our output is structured with css, js and media folders. 
// To have this structure working with relative paths, we have to use custom options. 
const extractTextPluginOptions = shouldUseRelativeAssetPaths 
    ? // Making sure that the publicPath goes back to to build folder. 
    { publicPath: Array(cssFilename.split('/').length).join('../') } 
    : {}; 

// This is the production configuration. 
// It compiles slowly and is focused on producing a fast and minimal bundle. 
// The development configuration is different and lives in a separate file. 
module.exports = { 
    // Don't attempt to continue if there are any errors. 
    bail: true, 
    // In production, we only want to load the polyfills and the app code. 
    entry: { 
    app:[require.resolve('bootstrap-loader'), require.resolve('./polyfills'), paths.appIndexJs], 
    vendors : ['moment', 'moment-timezone', 'jquery', 'fixed-data-table-2', 'google-maps-react', 'lodash', 'react', 'react-dom', 'react-bootstrap'], 
    }, 
    output: { 
    // The build folder. 
    path: paths.appBuild, 
    // Generated JS file names (with nested folders). 
    // There will be one main bundle, and one file per asynchronous chunk. 
    // We don't currently advertise code splitting but Webpack supports it. 
    filename: 'static/js/[name].[chunkhash:8].js', 
    chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js', 
    // We inferred the "public path" (such as/or /my-project) from homepage. 
    publicPath: publicPath, 
    // Point sourcemap entries to original disk location (format as URL on Windows) 
    // devtoolModuleFilenameTemplate: info => 
    // path 
    //  .relative(paths.appSrc, info.absoluteResourcePath) 
    //  .replace(/\\/g, '/'), 
    }, 
    resolve: { 
    // This allows you to set a fallback for where Webpack should look for modules. 
    // We placed these paths second because we want `node_modules` to "win" 
    // if there are any conflicts. This matches Node resolution mechanism. 
    // https://github.com/facebookincubator/create-react-app/issues/253 
    modules: ['node_modules', paths.appNodeModules].concat(
     // It is guaranteed to exist because we tweak it in `env.js` 
     process.env.NODE_PATH.split(path.delimiter).filter(Boolean) 
    ), 
    // These are the reasonable defaults supported by the Node ecosystem. 
    // We also include JSX as a common component filename extension to support 
    // some tools, although we do not recommend using it, see: 
    // https://github.com/facebookincubator/create-react-app/issues/290 
    // `web` extension prefixes have been added for better support 
    // for React Native Web. 
    extensions: ['.web.js', '.js', '.json', '.web.jsx', '.jsx'], 
    alias: { 
     // @remove-on-eject-begin 
     // Resolve Babel runtime relative to react-scripts. 
     // It usually still works on npm 3 without this but it would be 
     // unfortunate to rely on, as react-scripts could be symlinked, 
     // and thus babel-runtime might not be resolvable from the source. 
     'babel-runtime': path.dirname(
     require.resolve('babel-runtime/package.json') 
    ), 
     // @remove-on-eject-end 
     // Support React Native Web 
     // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/ 
     'react-native': 'react-native-web', 
    }, 
    plugins: [ 
     // Prevents users from importing files from outside of src/ (or node_modules/). 
     // This often causes confusion because we only process files within src/ with babel. 
     // To fix this, we prevent you from importing files out of src/ -- if you'd like to, 
     // please link the files into your node_modules/ and let module-resolution kick in. 
     // Make sure your source files are compiled, as they will not be processed in any way. 
     new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]), 
    ], 
    }, 
    resolveLoader: { 
    moduleExtensions: ["-loader"] 
    }, 
    module: { 
    strictExportPresence: true, 
    rules: [ 
     // TODO: Disable require.ensure as it's not a standard language feature. 
     // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176. 
     // { parser: { requireEnsure: false } }, 

     // First, run the linter. 
     // It's important to do this before Babel processes the JS. 
     // { 
     // test: /\.(js|jsx)$/, 
     // enforce: 'pre', 
     // use: [ 
     //  { 
     //  options: { 
     //   formatter: eslintFormatter, 
     //   // @remove-on-eject-begin 
     //   // TODO: consider separate config for production, 
     //   // e.g. to enable no-console and no-debugger only in production. 
     //   baseConfig: { 
     //   extends: [require.resolve('eslint-config-react-app')], 
     //   }, 
     //   ignore: false, 
     //   useEslintrc: false, 
     //   // @remove-on-eject-end 
     //  }, 
     //  loader: require.resolve('eslint-loader'), 
     //  }, 
     // ], 
     // include: paths.appSrc, 
     // }, 
     // ** ADDING/UPDATING LOADERS ** 
     // The "file" loader handles all assets unless explicitly excluded. 
     // The `exclude` list *must* be updated with every change to loader extensions. 
     // When adding a new loader, you must add its `test` 
     // as a new entry in the `exclude` list in the "file" loader. 

     // "file" loader makes sure those assets end up in the `build` folder. 
     // When you `import` an asset, you get its filename. 
     { 
     exclude: [ 
      /\.html$/, 
      /\.(js|jsx)$/, 
      /\.css$/, 
      /\.json$/, 
      /\.bmp$/, 
      /\.gif$/, 
      /\.jpe?g$/, 
      /\.png$/, 
      /\.scss$/, 
      /\.yml$/, 
     ], 
     loader: require.resolve('file-loader'), 
     options: { 
      name: 'static/media/[name].[hash:8].[ext]', 
     }, 
     }, 
     // "url" loader works just like "file" loader but it also embeds 
     // assets smaller than specified size as data URLs to avoid requests. 
     { 
     test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/], 
     loader: require.resolve('url-loader'), 
     options: { 
      limit: 10000, 
      name: 'static/media/[name].[hash:8].[ext]', 
     }, 
     }, 
     // Process JS with Babel. 
     { 
     test: /\.(js|jsx)$/, 
     include: paths.appSrc, 
     loader: require.resolve('babel-loader'), 
     exclude: /\le.min.js$/, 
     options: { 
      // @remove-on-eject-begin 
      babelrc: true, 
      presets: [require.resolve('babel-preset-es2015'), require.resolve('babel-preset-react-app'), require.resolve('babel-preset-stage-2'), require.resolve('babel-preset-stage-1'), require.resolve('babel-preset-stage-3')], 
      plugins: [require.resolve('babel-plugin-transform-class-properties'), require.resolve('babel-plugin-transform-es2015-arrow-functions')], 
      // @remove-on-eject-end 
      compact: true, 
      cacheDirectory: false, //important for performance 
     }, 
     }, 
     // The notation here is somewhat confusing. 
     // "postcss" loader applies autoprefixer to our CSS. 
     // "css" loader resolves paths in CSS and adds assets as dependencies. 
     // "style" loader normally turns CSS into JS modules injecting <style>, 
     // but unlike in development configuration, we do something different. 
     // `ExtractTextPlugin` first applies the "postcss" and "css" loaders 
     // (second argument), then grabs the result CSS and puts it into a 
     // separate file in our build process. This way we actually ship 
     // a single CSS file in production instead of JS code injecting <style> 
     // tags. If you use code splitting, however, any async bundles will still 
     // use the "style" loader inside the async code so CSS from them won't be 
     // in the main CSS file. 
     { 
     test: /\.css$/, 
     use: [ 
      require.resolve('style-loader'), 
      { 
      loader: require.resolve('css-loader'), 
      options: { 
       importLoaders: 1, 
      }, 
      }, 
      { 
      loader: require.resolve('postcss-loader'), 
      options: { 
       // Necessary for external CSS imports to work 
       // https://github.com/facebookincubator/create-react-app/issues/2677 
       ident: 'postcss', 
       plugins:() => [ 
       require('postcss-flexbugs-fixes'), 
       autoprefixer({ 
        browsers: [ 
        '>1%', 
        'last 4 versions', 
        'Firefox ESR', 
        'not ie < 9', // React doesn't support IE8 anyway 
        ], 
        flexbox: 'no-2009', 
       }), 
       ], 
      }, 
      }, 
     ], 
     // loader: ExtractTextPlugin.extract(
     // Object.assign(
     //  { 
     //  fallback: require.resolve('style-loader'), 
     //  use: [ 
     //   { 
     //   loader: require.resolve('css-loader'), 
     //   options: { 
     //    importLoaders: 1, 
     //    minimize: true, 
     //    // sourceMap: true, 
     //   }, 
     //   }, 
     //   { 
     //   loader: require.resolve('postcss-loader'), 
     //   options: { 
     //    // Necessary for external CSS imports to work 
     //    // https://github.com/facebookincubator/create-react-app/issues/2677 
     //    ident: 'postcss', 
     //    plugins:() => [ 
     //    require('postcss-flexbugs-fixes'), 
     //    autoprefixer({ 
     //     browsers: [ 
     //     '>1%', 
     //     'last 4 versions', 
     //     'Firefox ESR', 
     //     'not ie < 9', // React doesn't support IE8 anyway 
     //     ], 
     //     flexbox: 'no-2009', 
     //    }), 
     //    ], 
     //   }, 
     //   }, 
     //  ], 
     //  }, 
     //  extractTextPluginOptions 
     // ) 
     //), 
     // Note: this won't work without `new ExtractTextPlugin()` in `plugins`. 
     }, 
     { 
     test: /\.scss$/, 
     use: [ require.resolve('style-loader'), require.resolve('css-loader'), require.resolve('sass-loader')] 
     // loader : ExtractTextPlugin.extract(
     // { 
     //  fallback: require.resolve('style-loader'), 
     //  //resolve-url-loader may be chained before sass-loader if necessary 
     //  use: [require.resolve('css-loader'), require.resolve('sass-loader')] 
     // } 
     //) 
     }, 
     { 
     test: /\.json$/, 
     loader : require.resolve('json-loader') 
     }, 
     { 
     test: /\.yml$/, 
     loader : [require.resolve('json-loader'), require.resolve('yaml-loader')] 
     }, 
     { test: /bootstrap\/dist\/js\/umd\//, loader: 'imports-loader?jQuery=jquery' }, 
     { test: /bootstrap-sass\/assets\/javascripts\//, loader: 'imports-loader?jQuery=jquery'} 
     // ** STOP ** Are you adding a new loader? 
     // Remember to add the new extension(s) to the "file" loader exclusion list. 
    ], 
    }, 
    plugins: [ 
    // Makes some environment variables available in index.html. 
    // The public URL is available as %PUBLIC_URL% in index.html, e.g.: 
    // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico"> 
    // In production, it will be an empty string unless you specify "homepage" 
    // in `package.json`, in which case it will be the pathname of that URL. 
    new InterpolateHtmlPlugin(env), 
    // Generates an `index.html` file with the <script> injected. 
    new HtmlWebpackPlugin({ 
     inject: true, 
     template: paths.appHtml, 
     minify: { 
     removeComments: true, 
     collapseWhitespace: true, 
     removeRedundantAttributes: true, 
     useShortDoctype: true, 
     removeEmptyAttributes: true, 
     removeStyleLinkTypeAttributes: true, 
     keepClosingSlash: true, 
     minifyJS: true, 
     minifyCSS: true, 
     minifyURLs: true, 
     }, 
    }), 
    // Makes some environment variables available to the JS code, for example: 
    // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`. 
    // It is absolutely essential that NODE_ENV was set to production here. 
    // Otherwise React will be compiled in the very slow development mode. 
    new webpack.DefinePlugin(env), 
    new LodashModuleReplacementPlugin, 
    // Minify the code. 
    new webpack.optimize.UglifyJsPlugin({ 
     minimize: true, 
     compress: { 
     unused: true, 
     dead_code: true, // big one--strip code that will never execute 
     warnings: false, // good for prod apps so users can't peek behind curtain 
     drop_debugger: true, 
     conditionals: true, 
     evaluate: true, 
     drop_console: true, // strips console statements 
     sequences: true, 
     booleans: true, 
     // Disabled because of an issue with Uglify breaking seemingly valid code: 
     // https://github.com/facebookincubator/create-react-app/issues/2376 
     // Pending further investigation: 
     // https://github.com/mishoo/UglifyJS2/issues/2011 
     comparisons: false, 
     }, 
     output: { 
     comments: false, 
     // Turned on because emoji and regex is not minified properly using default 
     // https://github.com/facebookincubator/create-react-app/issues/2488 
     ascii_only: true, 
     }, 
     // sourceMap: true, 
    }), 
    // Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`. 
    new ExtractTextPlugin({ 
     filename: cssFilename, 
    }), 
    // Generate a manifest file which contains a mapping of all asset filenames 
    // to their corresponding output file so that tools can pick it up without 
    // having to parse `index.html`. 
    new ManifestPlugin({ 
     fileName: 'asset-manifest.json', 
    }), 
    new webpack.ProvidePlugin({ 
     $: "jquery", 
     jQuery: "jquery" 
    }), 
    // new BundleAnalyzerPlugin(), 
    // Generate a service worker script that will precache, and keep up to date, 
    // the HTML & assets that are part of the Webpack build. 
    new SWPrecacheWebpackPlugin({ 
     // By default, a cache-busting query parameter is appended to requests 
     // used to populate the caches, to ensure the responses are fresh. 
     // If a URL is already hashed by Webpack, then there is no concern 
     // about it being stale, and the cache-busting can be skipped. 
     dontCacheBustUrlsMatching: /\.\w{8}\./, 
     filename: 'service-worker.js', 
     logger(message) { 
     if (message.indexOf('Total precache size is') === 0) { 
      // This message occurs for every build and is a bit too noisy. 
      return; 
     } 
     if (message.indexOf('Skipping static resource') === 0) { 
      // This message obscures real errors so we ignore it. 
      // https://github.com/facebookincubator/create-react-app/issues/2612 
      return; 
     } 
     console.log(message); 
     }, 
     minify: true, 
     // For unknown URLs, fallback to the index page 
     navigateFallback: publicUrl + '/index.html', 
     // Ignores URLs starting from /__ (useful for Firebase): 
     // https://github.com/facebookincubator/create-react-app/issues/2237#issuecomment-302693219 
     navigateFallbackWhitelist: [/^(?!\/__).*/], 
     // Don't precache sourcemaps (they're large) and build asset manifest: 
     staticFileGlobsIgnorePatterns: [/\.map$/, /asset-manifest\.json$/], 
    }), 
    // Moment.js is an extremely popular library that bundles large locale files 
    // by default due to how Webpack interprets its code. This is a practical 
    // solution that requires the user to opt into importing specific locales. 
    // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack 
    // You can remove this if you don't use Moment.js: 
    new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/), 
    new webpack.optimize.CommonsChunkPlugin({ 
     name: 'vendors', 
     minChunks: Infinity, 
     path: paths.appBuild, 
     filename: 'static/js/[name].[hash].js', 
    }), 
    new CriticalPlugin({ 
     src: 'index.html', 
     inline: true, 
     minify: true, 
     dest: 'index.html' 
    }), 
    ], 
    // Some libraries import Node modules but don't use them in the browser. 
    // Tell Webpack to provide empty mocks for them so importing them works. 
    node: { 
    dgram: 'empty', 
    fs: 'empty', 
    net: 'empty', 
    tls: 'empty', 
    }, 
}; 

Toute aide serait appréciée, Merci à l'avance

Answer 1

En réponse à ma propre question

je faisais face ce problème parce que j'ai éjecté de create-react-app par cette commande npm run éjecter.

Donc, n'utilisez pas cette commande sauf s'il s'agit de la seule option.

Si vous souhaitez modifier une configuration dans create-react-app en l'éjectant, vous pouvez utiliser react-app-rewired .

Même après tous ces changements je faisais face cette erreur

Uncaught TypeError: Impossible d'affecter à lecture seule propriété « __esModule » de #

Je ne résoudre ce problème en ajoutant polyfill suivant

var defineProperty = Object.defineProperty; 
    Object.defineProperty = function (exports, name) { 
    if (name === '__esModule') { 
     exports[name] = true; 
     return; 
    } 
    return defineProperty.apply(this, arguments); 
    };