Question: I'm using a sidebar with a navbar at the top that just displays the hamburger button (when mobile), and a refresh button. It does this fine, but when you click the hamburger icon nothing happens! The sidebar doesn't open. How can I fix this?

Here's my code (the stuff the matters):

```
<div class="navbar-fixed">
    <nav class="navbar blue">
        <div class="nav-wrapper">
            <ul class="right hide-on-med-and-down">
                <li><a onClick="window.location.reload()"><i class="material-
    icons">refresh</i></a></li>
            </ul>

            <a href="#" data-target="slide-out" class="sidenav-trigger"><i 
    class="material-icons">menu</i></a>
        </div>
    </nav>
</div>

<ul id="slide-out" class="sidenav sidenav-fixed">
    ...
</ul>

```

And yes, I do have the Materialize CSS and JS, with jQuery version 2.1.1.

Answer: 
Add above code in index.html file instead of app.component.html file.
take out class fixed and if you want fixed menu do it in css. with that class menu won't work