Bootstrap 4 collapsed navbar not working

Question

I have problem with collapsed navbar in Bootstrap4.

<nav class="navbar navbar-toggleable-md navbar-inverse fixed-top bg-inverse">
      <button class="navbar-toggler navbar-toggler-right collapsed" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>
      <a class="  navbar-brand" href="#myCarousel">
        <img src="image/logo.svg" height="50">
      </a>
      <div class="collapse navbar-collapse" id="navbarCollapse">
        <ul class="navbar-nav nav mr-auto">
           <li class="nav-item">
            <a class="nav-link" href="#2"  data-toggle="collapse" data-target=".navbar-collapse.show">Home</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#3"  data-toggle="collapse" data-target=".navbar-collapse.show">About</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#4"  data-toggle="collapse" data-target=".navbar-collapse.show">Contact</a>
          </li>
        </ul>

      </div>
    </nav>

Of course ihave added right id to another elements, like:

<div class="container marketing" id="2">

Menu doesn't work. When i click on element of navbar, menu close but doesn't move to right site.

When delete collapse's attributes:

data-toggle="collapse" data-target=".navbar-collapse.show"

menu doesn't close on click but move to right site.

Thanks :)

Answer 1

 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous"> <!-- jQuery library --> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script> <nav class="navbar navbar-toggleable-md navbar-inverse fixed-top bg-inverse"> <button class="navbar-toggler navbar-toggler-right collapsed" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <a class=" navbar-brand" href="#myCarousel"> <img src="image/techNET.svg" height="50"> </a> <div class="collapse navbar-collapse" id="navbarCollapse"> <ul class="navbar-nav nav mr-auto"> <li class="nav-item"> <a class="nav-link" href="#2" data-toggle="collapse" data-target=".navbar-collapse.show">Home</a> </li> <li class="nav-item"> <a class="nav-link" href="#3" data-toggle="collapse" data-target=".navbar-collapse.show">About</a> </li> <li class="nav-item"> <a class="nav-link" href="#4">Contact</a> </li> </ul> </div> </nav>