I am trying to implement this example: https://material.angularjs.org/1.1.1/demo/navBar
So I created following index.html:
<!DOCTYPE html> <html lang="en"> 
    <head>
        <meta charset="UTF-8">
    </head> 
    <body> 
    <div ng-controller="AppCtrl" ng-cloak="" class="navBardemoBasicUsage" ng-app="MyApp">
    <md-content class="md-padding">
        <md-nav-bar md-selected-nav-item="currentNavItem" nav-bar-aria-label="navigation links">
            <md-nav-item md-nav-click="goto('page1')" name="page1">Page One</md-nav-item>
            <md-nav-item md-nav-click="goto('page2')" name="page2">Page Two</md-nav-item>
            <md-nav-item md-nav-click="goto('page3')" name="page3">Page Three</md-nav-item>
        </md-nav-bar>
        <div class="ext-content">
            External content for `<span>{{currentNavItem}}</span>`
        </div>
    </md-content></div>
    <script src="vendor/angular/angular.min.js"></script> 
    <script src="http://ngmaterial.assets.s3.amazonaws.com/svg-assets-cache.js"></script> 
    <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-animate.min.js"></script> 
    <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-aria.min.js"></script> 
    <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-messages.min.js"></script> 
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-route.min.js"></script> 
    <script src="app.js"></script> 
</body> 
</html>
and following app.js:
(function() {
    'use strict';
    angular.module('MyApp',['ngMaterial', 'ngMessages', 'material.svgAssetsCache'])
        .controller('AppCtrl', AppCtrl);
    function AppCtrl($scope) {
        $scope.currentNavItem = 'page1';
    }
})();
I am getting this exception:
Failed to instantiate module MyApp due to:
Error: [$injector:modulerr] http://errors.angularjs.org/1.5.8/$injector/modulerr?p0=n...)
    at http://localhost:8000/vendor/angular/angular.min.js:6:412
    at http://localhost:8000/vendor/angular/angular.min.js:40:222
    at q (http://localhost:8000/vendor/angular/angular.min.js:7:355)
    at g (http://localhost:8000/vendor/angular/angular.min.js:39:319)
    at http://localhost:8000/vendor/angular/angular.min.js:39:488
    at q (http://localhost:8000/vendor/angular/angular.min.js:7:355)
    at g (http://localhost:8000/vendor/angular/angular.min.js:39:319)
    at cb (http://localhost:8000/vendor/angular/angular.min.js:43:336)
    at c (http://localhost:8000/vendor/angular/angular.min.js:20:390)
    at Bc (http://localhost:8000/vendor/angular/angular.min.js:21:179
What have I done wrong?