开发用到的依赖如下
"axios": "^0.18.0",
"babel-polyfill": "^6.26.0",
"core-js": "^3.3.5",
"customize-cra": "^0.5.0",
"firebase...": "^16.8.6",
"react-app-rewired": "^2.1.3",
"react-confirm-alert": "^2.4.1",
"react-credit-cards": "...^0.7.0",
"react-dom": "^16.8.6",
"react-ga": "^2.6.0",
"react-i18next": "^10.10.0",
"react-paypal-express-checkout...": "^1.0.5",
"react-redux": "^7.0.3",
"react-router-dom": "^5.0.0",
"react-scripts": "3.0.1",
"react-switch...所以是不兼容了。