关于ant自动打包apk的问题.

最近在学习ant.... <property name="jdk-home" value="C:\Program Files\Java\jdk1.5.0" />  

<property name="sdk-folder" value="E:\android-sdk-windows-all" />

<property name="sdk-tools" value="E:\android-sdk-windows-all\tools" /> 

<property name="sdk-platform" value="E:\android-sdk-windows-all\platforms\android-8" /> 

<property name="sdk-platform-tools" value="E:\android-sdk-windows-all\platform-tools" />  

<property name="android-framework" value="E:\android-sdk-windows-all\platforms\android-8" />
   
                <property name="aidl" value="${sdk-platform-tools}/aidl.exe" />  
上面是我的部分路径属性  
             <target name="aidl" depends="init">  
  
        <echo>Compiling aidl files into Java classes...</echo>  
  
        <apply executable="${aidl}" failonerror="true">  
  
            <arg value="-p${android-framework}" />  
  
            <arg value="-I${src-dir}" />  
  
            <fileset dir="${src-dir}">  
  
                <include name="**/*.aidl" />  
  
            </fileset>  
  
        </apply>  
  
    </target>  上面这段代码总是报错 [apply] aidl: can't open preprocessed file: E:\android-sdk-windows-all\platforms\android-8
BUILD FAILED
D:\ctrip_mobile\build.xml:159: apply returned: 1请问是路径设错了吗...............求解答