npm i bootstrap jquery popper.js

​

# Go to src/main.js import like:

​

import 'bootstrap'; import 'bootstrap/dist/css/bootstrap.min.css';

​

npm install bootstrap

npm install bootstrap-vue

​

Then, open the main.js file with your code editor. Import bootstrap.

​

import 'bootstrap/dist/css/bootstrap.css'

import 'bootstrap-vue/dist/bootstrap-vue.css'

​

Here is the main.js file code.

​

import { createApp } from 'vue'

import App from './App.vue'

import 'bootstrap/dist/css/bootstrap.css'

import 'bootstrap-vue/dist/bootstrap-vue.css'

createApp(App).mount('#app')

 npm install bootstrap or yarn add boostrap

 then in main index.js file 

 import 'bootstrap/dist/css/bootstrap.min.css';

 import 'bootstrap/dist/js/bootstrap.bundle.min';