Установите начальную загрузку
npm install bootstrap
//OR
npm install bootstrap@latest
Repulsive Ray
npm install bootstrap
//OR
npm install bootstrap@latestnpm i bootstrap@4.6.0
or last version
npm i bootstrap@latest{/* The following line can be included in your src/index.js or App.js file*/}
import 'bootstrap/dist/css/bootstrap.min.css';npm install bootstrap@latestnpm install bootstrap@3.3.7 --save
npm install bootstrap@latest --save