Cannot resolve symbol ‘Component’ & Cannot resolve symbol ‘PropTypes’

import React, { Component, PropTypes } from 'react' 

  报错：Cannot resolve symbol 'Component' 
       Cannot resolve symbol 'PropTypes'

1.解决 Cannot resolve symbol 'Component' 

  安装依赖：npm install @types/react --save
  调用方法：import React, { Component } from 'react'

2.解决 Cannot resolve symbol 'PropTypes'

  安装依赖：npm install prop-types --save
  调用方法：import PropTypes from 'prop-types'

注：React.PropTypes 自 React v15.5 起已弃用。请使用 prop-types 库代替。