我使用rails 3.2与ckeditor gem版本4.0.4 . 我想切换到增强的图像插件（http://ckeditor.com/addon/image2） . 我已经下载了这个插件和依赖小部件和线条图块插件 . 但是，我在小部件插件时收到此错误：
Uncaught TypeError: Object #<Object> has no method 'getIndex'
我在application.js中加载了插件文件：
//= require jquery
//= require jquery-ui
//= require jquery_ujs
//= require underscore
//= require_tree ./frontend
//= require ckeditor/init
//= require lineutils/plugin
//= require widget/plugin
//= require widget/lang/en
//= require image2/plugin
//= require image2/lang/en
//= require doksoft_image_embed/dlg
//= require doksoft_image_embed/plugin
//= require doksoft_image_embed/lang/en
//= require bootstrap
//= require bootstrap-slider
//= require bootstrap-select
//= require highcharts
//= require highcharts/draggable-points
//= require main
然后在我的ckeditor / config.js中我添加了这一行
config.extraPlugins = "doksoft_image_embed,image2";
然后导致错误 . 有什么想法吗？