install : $ npm install react-router-dom # or, for a React Native app $ npm install react-router-native If you get below error when you intall react router. Error: error:0308010C:digital envelope routines::unsupported at new Hash (node:internal/crypto/hash:68:19) at Object.createHash (node:crypto:138:10) at module.exports (C:\Dev\WorkSpace\React\Exercise Files\main\react-app\node_modules\webpack..