我有下面的ANT脚本来启动/停止tomcat:

   <project name="sample">
<property name="name" value="sample"/>
<path id="catalina-ant-classpath"> 
<fileset dir="D:\apache-tomcat-7.0.47-windows-x64\apache-tomcat-7.0.47\lib"> 
<include name="catalina-ant.jar"/> 
</fileset> 
</path> 
<taskdef name="start" classname="org.apache.catalina.ant.StartTask"> 
<classpath refid="catalina-ant-classpath"/> 
</taskdef>

<taskdef name="stop" classname="org.apache.catalina.ant.StopTask">
<classpath refid="catalina-ant-classpath"/>
</taskdef>

<target name="start" description="Start Tomcat application">
<start url="http://localhost:8080/manager"
username="uname"
password="pwd"/>
</target>
<target name="stop" description="Stop Tomcat application">
<stop url="http://localhost:8080/manager"
username="uname"
password="pwd"/>
</target>
</project>

当我运行上面的脚本时，它会抛出下面的错误：

D：\apache-ant-1.9.3-bin\apache-ant-1.9.3\bin

上面的脚本有什么错误吗？

谢谢