Image Ibrowser安装-图标为'；t显示

我正在为tinymce安装ibrowser。以下是配置文件：

$cfg['ilibs'] = array ( // image library path with slashes; absolute to root directory
array (
    'value' => '/Content/articles/',
    'text' => 'Site Pictures',
),
array (
    'value' => '/Content/articles/',
    'text' => 'Gallery',
),
);

tinyMce初始化的代码如下：

mode: "textareas",
    theme: "advanced",
    plugins: "autolink,lists,spellchecker,pagebreak,style,layer,table,save,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template,ibrowser",

    // Theme options
    theme_advanced_buttons1: "bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,|,styleselect,formatselect,fontselect,fontsizeselect",
    theme_advanced_buttons2: "cut,copy,paste,pastetext,pasteword,|,search,replace,|,bullist,numlist,|,outdent,indent,blockquote,|,undo,redo,|,link,unlink,anchor,image,cleanup,help,code,|,insertdate,inserttime,preview,|,forecolor,backcolor",
    theme_advanced_buttons3: "tablecontrols,|,hr,removeformat,visualaid,|,sub,sup,|,charmap,emotions,iespell,media,advhr,|,print,|,ltr,rtl,|,fullscreen",
    theme_advanced_buttons4: "ibrowser,|,insertlayer,moveforward,movebackward,absolute,|,styleprops,spellchecker,|,cite,abbr,acronym,del,ins,attribs,|,visualchars,nonbreaking,template,blockquote,pagebreak,|,insertfile,insertimage",     

---

但是浏览器图标没有显示。我为所需的文件夹设置了正确的权限，没有设置任何内容。为什么会这样？没有错误，其他所有内容都会显示。

问题在于tinyMce版本和iBrowser版本不兼容