ant / build.xml：658：null返回：127

Question

cannot run ANT task: 
The following error occurred while executing this line: 
    /opt/android-sdk-linux/tools/ant/build.xml:622: 
The following error occurred while executing this line: 
    /opt/android-sdk-linux/tools/ant/build.xml:658: null returned: 127

第621,622行：

<do-only-if-manifest-hasCode
                elseText="hasCode = false. Skipping aidl/renderscript/R.java">

第658行：

proguardFile="${out.absolute.dir}/proguard.txt">

我在构建.apk期间遇到此错误。任何人都可以找出错误的原因吗？