app.routes.js

app.config(['$stateProvider', '$urlRouterProvider', '$controllerProvider', '$compileProvider', '$filterProvider', '$provide', '$httpProvider',
    function($stateProvider, $urlRouterProvider, $controllerProvider, $compileProvider, $filterProvider, $provide, $httpProvider){

        $urlRouterProvider.otherwise('/');

        $stateProvider
            .state('app', {
                url: '',
                abstract: true,
                templateUrl: 'views/layouts/application.html'
            })

            .state('app.root', {
                url: '/',
                templateUrl: 'views/login/index.html'
            })

    }
]);