android - ant/build.xml:658: null が返されました: 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

行 621,622:

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

行 658:

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

.apk のビルド中にこのエラーが発生しました。誰が何が悪いのか理解できますか?