的Joomla 3.1不允許安裝插件

我想在我的Joomla 3.2基於站點安裝高級定製HTML插件，但我一直再次得到同樣的錯誤，並再次的Joomla 3.1不允許安裝插件

JInstaller: :Install: Cannot find Joomla XML setup file,error

的xml文件的zip文件中確實存在。下面是XML文件

<?xml version="1.0" encoding="UTF-8"?> 
    -<install client="site" method="upgrade" version="1.5.0" type="module"> 
<name>Custom HTML advanced</name> 
    <author>Pluginaria.com</author> 
    <creationDate>November 2013</creationDate> 
    <copyright>Copyright (C) 2013 Pluginaria.com.</copyright> 
    <license>GNU/GPL v2 or later http://www.gnu.org/licenses/gpl-2.0.html</license> 
    <authorEmail>[email protected]</authorEmail> 
    <authorUrl>www.pluginaria.com</authorUrl> 
    <version>2.3</version> 
    <description> Allows to place custom HTML into module position. Unlike standard mod_custom, can modify module chrome it is displayed with (to remove boxes around the module usually imposed by some templates in certain module positions). </description> -<languages> 
    <language tag="en-GB">language/en-GB/en-GB.mod_custom_advanced.ini</language> 
</languages> -<files> 
<filename module="mod_custom_advanced">mod_custom_advanced.php</filename> 
</files> -<params> 
<param type="textarea" cols="40" rows="32" description="" label="Custom HTML" default="" filter="raw" name="customHtml"/> 
<param type="textarea" cols="40" rows="16" description="" label="Custom PHP code" default="" name="evalPhp"/> 
<param type="text" description="Use 'none' (without quotes) to remove chrome imposed by template." label="Override module inclusion style (chrome) set by template" default="" name="moduleStyle"/> 
<param type="spacer" default="HTML Header options" name="@spacer"/> 
<param type="textarea" cols="40" rows="16" description="Will be placed inside style tag in HTML header." label="CSS style overrides" default="" name="cssOverride"/> 
<param type="text" description="Style sheet (.css) file. Will be referenced in HTML header." label="CSS style sheet" default="" name="styleSheet"/> 
<param type="text" description="Javascript file (.js) file. Will be referenced in HTML header." label="Javascript file" default="" name="javascriptFile"/> 
</params> -<params group="advanced"> 
<param type="text" description="PARAMMODULECLASSSUFFIX" label="Module Class Suffix" default="" name="moduleclass_sfx"/> -<param type="list" description="Select whether to cache the content of this module" label="Caching" default="1" name="cache"> 
    <option value="1">Use global</option> 
    <option value="0">No caching</option> 
</param> 
</params> 
</install>

這裏的內容插件的文件夾結構，如果這將有助於 enter image description here