相关疑难解决方法(0)

我正在尝试学习反应,所以我有这个示例代码为fullstack反应投票应用程序,我试图让它工作,但在运行npm install后跟npm start我收到以下错误:

npm ERR! Darwin 16.4.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "server"
npm ERR! node v7.5.0
npm ERR! npm  v4.3.0
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! voting_app@1.1.0 server: `live-server --public --    
host=localhost --port=3000 --middleware=./disable-browser-cache.js`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the voting_app@1.1.0 server script 'live-server --
public --host=localhost --port=3000 --middleware=./disable-browser- 
cache.js'.
npm ERR! Make sure you have the latest version of node.js …

我在 state.js 文件中收到此错误（在 const 配置文件中的 => 处）无法理解为什么......感谢反馈

const credentials = {
  email: '',
  password: ''
}
const profile = {
=>    userId: '',
  gender: '',
  firstName: '',
  lastName: '',
  address: '',
  zipCode: '',
  city: '',
  country: 'France',
  musician: false,
  musicInstruments: [],
  yearsPlaying: 0
}
export default {
  credentials,
  profile
}

来自 vue-cli 的标准 eslint conf。网络包初始化

.eslintrc.js

// https://eslint.org/docs/user-guide/configuring

module.exports = {
  root: true,
  parserOptions: {
    parser: 'babel-eslint'
  },
  env: {
    browser: true,
  },
  extends: [
    // https://github.com/vuejs/eslint-plugin-vue#priority-a-essential-error-prevention
    // consider switching …