3个错误non-zero exit value 1； non-zero exit value 2； non-zero exit value 3
Error:Execution failed for task ":app:transformClassesWithDexForDebug".
com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process "command "F:Program Files (x86)Javajdk1.8.0_31injava.exe"" finished with non-zero exit value 1
这个是因为依赖包重复了 ，如图。app中实现了对easeUI的依赖，但是app和easeUI都添加了对这个包的依赖。所以就报这个错误，修改之后再报，就clean，rebuild一下
Error:Execution failed for task ":app:transformClassesWithDexForDebug".
com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process "command "F:Program Files (x86)Javajdk1.8.0_31injava.exe"" finished withnon-zero exit value 2
这个错误是注释掉app中的v4包之后出现的。解决方法 clean ,rebuild一下工程，就解决了。要是还解决不了，就重启一下。
Error:Execution failed for task ":app:transformClassesWithDexForDebug".
com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process "command "F:Program Files (x86)Javajdk1.8.0_31injava.exe"" finished withnon-zero exit value 3
这个错误就在app.bulid里面加上这句，再rebuild ,之后再运行就行了。4g可以看电脑配置修改（2g,3g,6g,8g）。
dexOptions {
javaMaxHeapSize "4g"
}
如图：
