zxing库兼容问题
用4.4的手机测试的出现以下错误啊,怎么解决的 Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'. > com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/zxing/BarcodeFormat.class