错误:
添加
compile ‘com.android.support:appcompat-v7:22.2.0‘
后报错，里面有其它的jar包，但是只要添加这个v7包就报错。
Error:Execution failed for task ‘:YizanService4Android:dexDebug‘.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process ‘command ‘/Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home/bin/java‘‘ finished with non-zero exit value 2
解决：添加如下代码
// Enabling multidex support.
multiDexEnabled true
错误：ZipException: duplicate entry: android/support/v4/view/ViewPager$SimpleOnPageChangeListener.class
解决：由于在module里面加入了v4包，将其移除，添加v7包至module
REFERENCES：http://stackoverflow.com/questions/29756188/java-finished-with-non-zero-exit-value-2-android-gradle
finished with non-zero exit 添加v7包报错的问题
原文：http://www.cnblogs.com/anee/p/4588518.html