摘要：
今天终于完成了近一个月的App开发工作，对程序进行混淆导出签名apk包时，却出现了如下的错误：Proguard returned with error code 1. See consoleNote: there were 4 duplicate class definitions.Warning: library class android.content.res.XmlResourceParser extends or implements program class org.xmlpull.v1.XmlPullParserWarning: library class android.co 阅读全文
