AngularFire包含$ firebaseArray或$ firebaseObject错误

Question

有谁知道为什么这么简单的代码会给我一个错误？当我包含$ firebaseObject时，我发出同样的错误：/

angular.js：11383错误：[$ injector：unpr] http://errors.angularjs.org/1.3.2/ $ injector / unpr？p0 = NaNirebaseArrayProvider％20％3C-％20％24firebaseArray％20％3C-％20SinglePageService

错误：$ injector：unpr 未知的提供商 未知提供商：

var myApp = angular.module('myApp', ['ngRoute','firebase']);


myApp.factory("SinglePageService", ["$firebaseArray", function($firebaseArray) {
    var ref = new Firebase('https://burning-heat-bbbb.firebaseio.com/users/');
    var items = $firebaseArray(ref);

    return {
        all: items,
        get: function (id) {
            console.log("service ID", id);
            var user = items.$getRecord(id);
            console.log(user);
            return user;
        }
    }
}]);



myApp.controller('SinglePage', function SinglePage($scope, SinglePageService, $location, $route) {

    var userId = $route.current.params.id;
    $scope.user = SinglePageService.get(userId);

    console.log("$scope.user", $scope.user);
});



    <script src="https://cdn.firebase.com/js/client/2.0.4/firebase.js"></script>
    <!-- AngularFire -->
    <script src="https://cdn.firebase.com/libs/angularfire/0.9.0/angularfire.min.js"></script>