android studio升级JAVA1.8出现各种奇葩问题

出现问题1.

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

解决办法:

build.gradle中加入

allprojects {
configurations {
all*.exclude group: 'com.android.support', module: 'support-v4'
}
}