Support for the experimental syntax 'decorators-legacy' isn't currently enabled

通过create-react-app创建的react项目配置mobx的时候报的错误，笔者使用的是
"mobx": "^5.15.0",
"mobx-react": "^6.1.4",

一、装包

• npm i customize-cra --save
• npm i react-app-rewired --save
• npm i @babel/plugin-proposal-decorators --save

二、项目根目录新建config-overrides.js文件

目录

const { override, addDecoratorsLegacy } = require('customize-cra');
module.exports = override(
  addDecoratorsLegacy()
);

三、修改package.json文件中的script

"scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test",
    "eject": "react-app-rewired eject"
  },

经过这三步操作之后，mobx就可以美滋滋的使用了