压缩失败；编译错误；works_threads

[glazec]

问题描述
1.文件压缩失败
2.编译时出现错误
3.works_threads一直显示正在下载

复现步骤
[复现问题的步骤]

firebase.js
export default function firebaseInit(){
const admin = require('firebase-admin');

var serviceAccount = require('../../config/total-array-182700-7d14cdcbbf54.json');

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount)
});

var db = admin.firestore();
return db
}

ticketHelpe.js
export default function readTicket(db){
    // const admin = require('firebase-admin');
    db.collection('tickets').get()
    .then((snapshot) => {
      snapshot.forEach((doc) => {
        console.log(doc.departure);
      });
    })
    .catch((err) => {
      console.log('Error getting documents', err);
    });
}

安装firebase-admin

期望行为
修复bug

报错信息
压缩错误报错范例（由于报错太多四千行，剩余的在附件里）

错误  压缩错误  文件C:\Users\***\Documents\Program\NASF\node_modules\firebase-admin\node_modules\node-forge\lib\ed25519.js
{ SyntaxError: Unexpected token: keyword (const)
    at JS_Parse_Error.get (eval at <anonymous> (C:\Users\***\Documents\Program\NASF\node_modules\uglify-js\tools\node.js:20:1), <anonymous>:71:23)
    at formatError (internal/util/inspect.js:817:16)
    at formatRaw (internal/util/inspect.js:616:14)
    at formatValue (internal/util/inspect.js:511:10)
    at inspect (internal/util/inspect.js:191:10)
    at Object.formatWithOptions (util.js:84:12)
    at Console.(anonymous function) (console.js:191:15)
    at Console.log (console.js:202:31)
    at recursiveRequire (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\src\util\resolve_npm_files.js:210:19)
    at CallExpression (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\src\util\resolve_npm_files.js:135:21)
  message: 'Unexpected token: keyword (const)',
  filename: '0',
  line: 188,
  col: 2,
  pos: 6953 }

---

编译报错 剩余的在附件里

错误  编译失败  src\service\firebase.js
TypeError: Property properties expected type of array but got object
    at validate (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-types\lib\definitions\index.js:161:13)
    at Object.validate (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-types\lib\definitions\index.js:190:10)
    at validate (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-types\lib\index.js:505:9)
    at Object.builder (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-types\lib\index.js:466:7)
    at CallExpression (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\src\weapp.js:689:45)
    at NodePath._call (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-traverse\lib\path\context.js:76:18)
    at NodePath.call (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-traverse\lib\path\context.js:48:17)
    at NodePath.visit (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-traverse\lib\path\context.js:105:12)
    at TraversalContext.visitQueue (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-traverse\lib\context.js:150:16)
    at TraversalContext.visitSingle (C:\Users\***\AppData\Roaming\nvm\v10.15.1\node_modules\@tarojs\cli\node_modules\babel-traverse\lib\context.js:108:19)

系统信息
� Taro v1.2.15

Taro CLI 1.2.15 environment info:
System:
OS: Windows 10
Binaries:
Node: 10.15.1 - C:\Program Files\nodejs\node.EXE
npm: 6.4.1 - C:\Program Files\nodejs\npm.CMD
平台：微信小程序

补充信息
wors_threads 为node的特性，因该不会存在没有安装的情况。
编译错误.txt
压缩错误.txt

[taro-bot]

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[umaim]

mishoo/UglifyJS#3275
webpack-contrib/uglifyjs-webpack-plugin#362
https://stackoverflow.com/questions/47439067/uglifyjs-throws-unexpected-token-keyword-const-with-node-modules

UglifyJS 压缩的问题，似乎是它不支持压缩 ES6，const 是 ES6 关键字

我的解决办法是，把控制台日志里涉及的第三方包用 babel 先编译成 ES5，然后再 build (:з)∠)

[WangShuXian6]

mishoo/UglifyJS2#3275
webpack-contrib/uglifyjs-webpack-plugin#362
https://stackoverflow.com/questions/47439067/uglifyjs-throws-unexpected-token-keyword-const-with-node-modules

UglifyJS 压缩的问题，似乎是它不支持压缩 ES6，const 是 ES6 关键字

我的解决办法是，把控制台日志里涉及的第三方包用 babel 先编译成 ES5，然后再 build (:з)∠)

我的页面都是函数式的