“SyntaxError：Unexpected token {”当'yarn run build：production'在暂存时[重复]

Question

我提前为我的大概英语道歉:)

这里有一个小回顾： 我们有一个 Rails 4 项目，最近我们用 React_on_rails gem 添加了一些 React 组件，所以我们需要实现 Webpack 作为 Asset Pipeline 的朋友（是的，我知道，Rails 5 做得更好）

所以问题是，当我尝试在 staging 上部署时，以及尝试在其上执行 yarn run build:production 时：

$ NODE_ENV=production webpack -p --config webpack.config.js
/home/unisc/apps/staging/releases/20170831104131/client/node_modules/react-on-rails/webpackConfigLoader.js:14
const { join, resolve } = require('path');
      ^

SyntaxError: Unexpected token {
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:373:25)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/home/unisc/apps/****_staging/releases/20170831104131/client/webpack.config.js:13:27)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)

这是我的 package.json ：

{
  "name": "****",
  "private": true,
  "scripts": {
    "build:test": "NODE_ENV=test webpack --config webpack.config.js",
    "build:production": "NODE_ENV=production webpack --config webpack.config.js",
    "build:development": "NODE_ENV=development webpack -w --config webpack.config.js"
  },
  "cacheDirectories": ["node_modules", "client/node_modules"],
  "dependencies": {
    "babel-cli": "^6.24.1",
    "babel-core": "^6.24.1",
    "babel-loader": "^6.3.2",
    "babel-runtime": "^6.23.0",
    "babel-polyfill": "^6.23.0",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-react": "^6.24.1",
    "babel-preset-stage-2": "^6.24.1",
    "es5-shim": "^4.5.9",
    "expose-loader": "^0.7.3",
    "imports-loader": "^0.7.1",
    "js-yaml": "^3.8.2",
    "react": "^15.5.4",
    "react-dom": "^15.5.4",
    "react-on-rails": "8.0.0",
    "webpack": "^2.3.3",
    "webpack-manifest-plugin": "^1.1.0"
  },
  "devDependencies": {
  }
}

还有我的 webpack.config.js ：

// For inspiration on your webpack configuration, see:
// https://github.com/shakacode/react_on_rails/tree/master/spec/dummy/client
// https://github.com/shakacode/react-webpack-rails-tutorial/tree/master/client

const webpack = require('webpack');
const { resolve } = require('path');

const ManifestPlugin = require('webpack-manifest-plugin');
const webpackConfigLoader = require('react-on-rails/webpackConfigLoader');

const configPath = resolve('..', 'config');
const { devBuild, manifest, webpackOutputPath, webpackPublicOutputDir } =
  webpackConfigLoader(configPath);

const config = {

  context: resolve(__dirname),

  entry: {
    'webpack-bundle': [
      'es5-shim/es5-shim',
      'es5-shim/es5-sham',
      'babel-polyfill',
      './app/bundles/registration',
    ],
  },

  output: {
    // Name comes from the entry section.
    filename: '[name]-[hash].js',

    // Leading slash is necessary
    publicPath: `/${webpackPublicOutputDir}`,
    path: webpackOutputPath,
  },

  resolve: {
    extensions: ['.js', '.jsx'],
  },

  plugins: [
    new webpack.EnvironmentPlugin({
      NODE_ENV: 'development', // use 'development' unless process.env.NODE_ENV is defined
      DEBUG: false,
    }),
    new ManifestPlugin({ fileName: manifest, writeToFileEmit: true }),
  ],

  module: {
    rules: [
      {
        test: require.resolve('react'),
        use: {
          loader: 'imports-loader',
          options: {
            shim: 'es5-shim/es5-shim',
            sham: 'es5-shim/es5-sham',
          },
        },
      },
      {
        test: /\.jsx?$/,
        use: 'babel-loader',
        exclude: /node_modules/,
      },
    ],
  },
};

module.exports = config;

if (devBuild) {
  console.log('Webpack dev build for Rails'); // eslint-disable-line no-console
  module.exports.devtool = 'eval-source-map';
} else {
  console.log('Webpack production build for Rails'); // eslint-disable-line no-console
}

我试图找到同样的问题，但没有成功......

此命令适用于我的机器，两者（我的机器和暂存）具有相同版本的 webpack，并且无论如何他们使用 node_modules 中的那个。

感谢阅读，祝你有美好的一天；）

我尝试过的：

• npm 升级、yarn 升级、删除 node_modules 并重试
• 将整个配置文件转换为 es5，但它碰到了依赖项中的另一个花括号
• 试图移动，删除 .babelrc 文件

我实际上在尝试什么：

• 看起来 es6 转译很糟糕

Answer 1

修好了！

感谢Michael Jungo，问题是登台服务器上没有更新nodejs，所以无法读取大括号...

谢谢！！ 反正我浪费了很多时间……