Javascript Ember.js教程：加载路线时出错

我遵循的是，但是，我使用的不是教程中推荐的版本，而是最新的版本，因为我认为最好使用可用库的最新版本。但是，当我尝试使用fixture来填充数据时，会出现以下错误：

"DEBUG: -------------------------------"
"DEBUG: Ember      : 1.5.0"
"DEBUG: Ember Data : 1.0.0-beta.7.f87cba88"
"DEBUG: Handlebars : 1.3.0"
"DEBUG: jQuery     : 2.1.0"
"DEBUG: -------------------------------"
"Attempting URL transition to /"
"Transition #0: application: calling beforeModel hook"
"Transition #0: application: calling deserialize hook"
"Transition #0: application: calling afterModel hook"
"Transition #0: todos: calling beforeModel hook"
"Transition #0: todos: calling deserialize hook"
"Error while loading route: Ember.Error@file:///C:/Projects/EmberTest/EmberTest/js/libs/ember-1.5.0.js:910
Store<.modelFor@file:///C:/Projects/EmberTest/EmberTest/js/libs/ember-data.js:9805
Store<.findAll@file:///C:/Projects/EmberTest/EmberTest/js/libs/ember-data.js:9404
Store<.find@file:///C:/Projects/EmberTest/EmberTest/js/libs/ember-data.js:9073
Todos.TodosRoute<.model@file:///C:/Projects/EmberTest/EmberTest/js/router.js:9
/* stack trace goes on... */

router.js，它似乎是调用this.store.find'todo'时发生错误的罪魁祸首：

Todos.Router.map(function() {
    this.resource('todos', {
        path : '/'
    });
});

Todos.TodosRoute = Ember.Route.extend({
    model : function() {
        return this.store.find('todo');
    }
});

最后，我的todo.js：

Todos.Todo = DS.Model.extend({
    title : DS.attr('string'),
    isCompleted : DS.attr('boolean')
});

Todos.Todo.FIXTURES = [ {
    id : 1,
    title : 'Learn Ember.js',
    isCompleted : true
}, {
    id : 2,
    title : '...',
    isCompleted : false
}, {
    id : 3,
    title : 'Profit!',
    isCompleted : false
} ];

---

有人知道是什么导致了这个错误吗？

您找到了解决问题的方法吗？我正在执行完全相同的代码，看起来Todos.ApplicationAdapter没有使用FixtureAdapter，但我不知道这是否正确。

Todos.Todo = DS.Model.extend({
    title : DS.attr('string'),
    isCompleted : DS.attr('boolean')
});

Todos.Todo.FIXTURES = [ {
    id : 1,
    title : 'Learn Ember.js',
    isCompleted : true
}, {
    id : 2,
    title : '...',
    isCompleted : false
}, {
    id : 3,
    title : 'Profit!',
    isCompleted : false
} ];