混淆中的jar包冲突

错误：Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'.

> com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry:

解决 gradle加上

packagingOptions {         exclude 'META-INF/LICENSE'         exclude 'META-INF/NOTICE'         exclude 'META-INF/MANIFEST.MF'     }