I'm seeing the following error:

   Warning: Please use `require("react-router").Router` instead of `require("react-router/Router")`. Support for the latter will be removed in the next major release.

 console.error node_modules/react-router-dom/node_modules/react-router/warnAboutDeprecatedCJSRequire.js:17
   Warning: Please use `require("react-router").MemoryRouter` instead of `require("react-router/MemoryRouter")`. Support for the latter will be removed in the next major release.

 console.error node_modules/react-router-dom/node_modules/react-router/warnAboutDeprecatedCJSRequire.js:17
   Warning: Please use `require("react-router").Route` instead of `require("react-router/Route")`. Support for the latter will be removed in the next major release.

 console.error node_modules/react-router-dom/node_modules/react-router/warnAboutDeprecatedCJSRequire.js:17
   Warning: Please use `require("react-router").Prompt` instead of `require("react-router/Prompt")`. Support for the latter will be removed in the next major release.

 console.error node_modules/react-router-dom/node_modules/react-router/warnAboutDeprecatedCJSRequire.js:17
   Warning: Please use `require("react-router").Redirect` instead of `require("react-router/Redirect")`. Support for the latter will be removed in the next major release.

 console.error node_modules/react-router-dom/node_modules/react-router/warnAboutDeprecatedCJSRequire.js:17
   Warning: Please use `require("react-router").StaticRouter` instead of `require("react-router/StaticRouter")`. Support for the latter will be removed in the next major release.

 console.error node_modules/react-router-dom/node_modules/react-router/warnAboutDeprecatedCJSRequire.js:17
   Warning: Please use `require("react-router").Switch` instead of `require("react-router/Switch")`. Support for the latter will be removed in the next major release.```


Inside the package.json file of react-router dom:

```"dependencies": {
   "history": "^4.7.2",
   "invariant": "^2.2.2",
   "loose-envify": "^1.3.1",
   "prop-types": "^15.5.4",
   "react-router": "^4.3.1",
   "warning": "^3.0.0"
 },```

It's downloading 4.4.0 due to this.

I still got this problem now:

WARNING in ./node_modules/react-router/esm/react-router.js 324:15-27
"export 'default' (imported as 'pathToRegexp') was not found in 'path-to-regexp'
 @ ./node_modules/react-router-dom/esm/react-router-dom.js
 @ ./src/index.jsx