今天，用android4.0在proguard-project.txt中加入 -libraryjars libs/ksoap2-android-assembly-2.6.0-jar-with-dependencies.jar这句话后，混淆时报上面的错误，下面与大家分享下具体的解决方法

代码如下: [2013-05-20 17:30:52 – danielinbiti] Proguard returned with error code 1. See console [2013-05-20 17:30:52 – danielinbiti] Note: there were 67 duplicate class definitions. [2013-05-20 17:30:52 – danielinbiti] Warning: library class android.cont