前端引入Bootstrap-select菜单时报错

Uncaught TypeError: Bootstrap's dropdowns require Popper (https://popper.js.org)

引入：

<script src="https://cdn.bootcss.com/popper.js/1.14.7/umd/popper.min.js"></script>

注：popper.js必须在bootstrap.js之前引用进来，否则也是报错的

reference:

https://blog.csdn.net/weixin_44299027/article/details/104938557

标签：菜单,Bootstrap,js,popper,https,引入,报错,select
来源： https://blog.csdn.net/qq_27009517/article/details/116421526