gradle升级到3.1.2打包jar失败

classpath ‘com.android.tools.build:gradle:3.1.2’
distributionUrl=https://services.gradle.org/distributions/gradle-4.4-all.zip
这个配置，之前能用的打jar包的task不能使用

   delete 'build/libs/'
    from('build/intermediates/bundles/release/')
    into('build/libs/')
    include('classes.jar')
    rename('classes.jar', 'xxx' + verName + '.jar')

需要修改from的目录为 build/intermediates/packaged-classes/release/ 就可以了