Wordpress navmenu not working - php

Question

Hi im trying to get mainmenu working, but i guess i do something wrong here is the code:
I am using bootstrap and linked it like this:
<link href="<?php bloginfo('stylesheet_directory'); ?>/assets/css/bootstrap.min.css" rel="stylesheet">
Anyone knows how to get this right?
<!-- HEADER
===========================================-->
<header class="site-header" role="banner">
<!-- NAVBAR
===========================================-->
<div class="navbar-wrapper">
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="dropdown">
Dropdown <span class="caret"></span>
<ul class="dropdown-menu">
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
</ul>
</div>
<?php
wp_nav_menu( array(
'menu' => 'primary',
'theme_location' => 'primary',
'container' => 'div',
'container_class' => 'navbar-collapse collapse',
'container_id' => 'navbar',
'menu_class' => 'nav navbar-nav'
) );
?>
</div>
</div>
</div>
</header>
Updated version

Answer 1

Wordpress menu will instantiate a menu object - you've literally got the html of the menu there, but this should be:
<nav id="site-navigation" class="main-navigation mobile-navigation">
<!-- <button class="menu-toggle" aria-controls="primary-menu" aria-expanded="false"><?php //esc_html_e( 'Primary Menu', 'eldon' ); ?></button> -->
<?php
wp_nav_menu( array(
'theme_location' => 'menu-1',
'menu_id' => 'primary-menu',
) );
?>
</nav><!-- #site-navigation -->
The menu should alreayd be set in the backend of the installation which will refer to this point in the header template.
Look here https://github.com/WordPress/WordPress/tree/master/wp-content/themes for examples of header.php templates using WordPress conventions. Please always refer to the Codex - you need to make sure you're not breaking a theme!
https://codex.wordpress.org/Theme_Development
Best thing you can do is to download a fresh copy of WordPress from wordpress.org and try again. You shouldn't have to change these templates but if you do, make sure you do it properly :)