关于V4、V7包重复的问题

以下错误都是V4包重复的问题

Error:Execution failed for task ':app:transformClassesWithJarMergingForRelease'.
com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: android/support/v4/app/FragmentTransaction.class

Error:Execution failed for task ':app:transformClassesWithJarMergingForRelease'.
com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: android/support/v4/app/FragmentTransaction.class

Error:Execution failed for task ':app:transformClassesWithJarMergingForRelease'.
com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: android/support/annotation/StringRes.class

注：以上这些错误只需要把依赖库中的V4的compile删掉就可以解决