来自 UglifyJs 的 ng build --prod 错误

debugcn 发表于 Dev

黄保禄

我用 angular-cli 创建了一个项目，ng build 没问题。出乎意料的是，当我使用ng build --prod 时出现错误：

ERROR in vender.d6758a1e6b8a2151c741.bundle.js from UglifyJs
Unexpected character '`'

我谷歌并找到了一些解决方法来改变tsconfig.json 文件中的"target": "es5"但默认情况下目标是 es5 。我不知道我的代码是否有问题或使用了错误的设置。

"dependencies": {
    "@angular/animations": "^4.0.1",
    "@angular/common": "^4.0.0",
    "@angular/compiler": "^4.0.0",
    "@angular/core": "^4.0.0",
    "@angular/forms": "^4.0.0",
    "@angular/http": "^4.0.0",
    "@angular/platform-browser": "^4.0.0",
    "@angular/platform-browser-dynamic": "^4.0.0",
    "@angular/router": "^4.0.0",
    "core-js": "^2.4.1", 
    "primeng": "^2.0.1",
    "rxjs": "^5.1.0",
     "underscore": "^1.8.3",
     "zone.js": "^0.8.4"
},
"devDependencies": {
    "@angular/cli": "1.0.0",
    "@angular/compiler-cli": "^4.0.0",
    "@types/jasmine": "2.5.38",
    "@types/node": "~6.0.60",
    "@types/underscore": "^1.8.0",
    "codelyzer": "~2.0.0",
    "jasmine-core": "~2.5.2",
    "jasmine-spec-reporter": "~3.2.0",
    "karma": "~1.4.1",
    "karma-chrome-launcher": "~2.0.0",
    "karma-cli": "~1.0.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "karma-coverage-istanbul-reporter": "^0.2.0",
    "protractor": "~5.1.0",
    "ts-node": "~2.0.0",
    "tslint": "~4.5.0",
    "typescript": "~2.2.0" 
}

谢谢！

维涅什

在 Webpack.prod.js 中像这样更改配置。

 plugins: [
    new webpack.NoEmitOnErrorsPlugin(),
    new webpack.optimize.UglifyJsPlugin({ // https://github.com/angular/angular/issues/10618
      mangle: {
        keep_fnames: true
      }
    }),
    new ExtractTextPlugin('[name].[hash].css'),
    new webpack.DefinePlugin({
      'process.env': {
        'ENV': JSON.stringify(ENV)
      }
    }),
    new webpack.LoaderOptionsPlugin({
      htmlLoader: {
        minimize: false // workaround for ng2
      }
    })
  ]

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