Currently, I am enrolled in a program to enhance my knowledge of Angular and have encountered a challenge. My project is utilizing the most recent version of bootstrap, which is bootstrap 4. However, I am facing issues with the main page not functioning correctly, displaying output that resembles bootstrap 3.x.
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a href="#" class="navbar-brand" >Recipe Book</a>
</div>
<div class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li><a href="#" >Recipes</a></li>
<li><a href="#" >Shopping List</a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a href="#" class="dropdown-toggle">Manage</a>
<ul class="dropdown-menu">
<li><a href="#">Save Data</a></li>
<li><a href="#">Fetch Data</a></li>
</ul>
</li>
</ul>
</div>
</div>
</nav>