-1
Hello, when I click on the button (which only appears in the resposivity from 768px) the submenu does not open and generates the error below.
<!doctype html>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href=node_modules/bootstrap/compiler/bootstrap.css>
<link rel="stylesheet" href=node_modules/>
<nav class="nav bar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand h1" href="#">Curso</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSite">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSite">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">Início</a>
</li>
</ul>
</div>
</nav>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="node_modules/jquery/dist/jquery.js"></script>
<script src="node_modules/popper.js/dist/umd/popper.js"></script>
<script src="node_modules/bootstrap/dist/js/bootstrap.js"></script>