I'm currently practicing my skills in Bootstrap 4 by rebuilding my website with it. However, I've run into an issue with the responsive navigation bar's toggler not working properly. Can anyone provide guidance on how to fix this? Thank you!
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Christian | First Website</title>
<link rel="stylesheet" href="assets/css/bootstrap.css">
<link rel="stylesheet" href="assets/css/style.css">
<link rel="alternate stylesheet" href="/assets/css/font-awesome.min.css">
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-light navbar-toggleable-md">
<a class="navbar-brand" href="#"><img src="assets/images/logo.png" height="100px"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home<span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Work</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Contact</a>
</li>
</ul>
</div>
</nav>
</body>
</html>