Spring 无法找到 OSGi 命名空间处理程序

我有一个春季MVC projet，可以在eclipse virgo OSGi平台上运行。当我尝试使用标签导入OSGi服务时，我得到以下异常：<osgi:reference>

Servlet /Web threw load() exception org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/osgi]

这是我的应用程序上下文文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:osgi="http://www.springframework.org/schema/osgi"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi.xsd">


<annotation-driven />


<resources mapping="/resources/**" location="/resources/" />


<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <beans:property name="prefix" value="/WEB-INF/views/" />
    <beans:property name="suffix" value=".jsp" />
</beans:bean>

<context:component-scan base-package="com.apptivit.web" />

<osgi:reference id="entityService" interface="com.apptivit.db.service.AbstractEntityService"/>  
</beans:beans>

最后在我的清单中。MF文件我正在这样做：

Manifest-Version: 1.0
Export-Package: com.apptivit.web;uses:="org.springframework.stereotype
 ,org.springframework.ui,org.springframework.web.bind.annotation"
Tool: Bundlor 1.0.0.RELEASE
Import-Package: com.apptivit.db.service,
 org.apache.log4j,
 org.slf4j,
 org.springframework.context;version="[3.0.5.RELEASE,3.0.5.RELEASE]",
 org.springframework.stereotype,
 org.springframework.ui,
 org.springframework.web.bind.annotation,
 org.springframework.web.context,
 org.springframework.web.servlet,
 org.springframework.web.servlet.view
Bundle-SymbolicName: webs
Bundle-Version: 0.0.1
Bundle-Name: WebSample
Bundle-Vendor: ApptivIT
Import-Bundle: org.springframework.osgi.core;version="[1.2.1,1.2.1]",
 org.springframework.beans;version="[3.0.5.RELEASE,3.0.5.RELEASE]",
 org.springframework.core;version="[3.0.5.RELEASE,3.0.5.RELEASE]"

我做错了什么???