Android studio 3.0 Warning:One of the plugins you are using supports Java 8 language features. To t

Warning:One of the plugins you are using supports Java 8 language features. To try the support built into the Android plugin, remove the following from your build.gradle:
    apply plugin: 'me.tatarka.retrolambda'
To learn more, go to https://d.android.com/r/tools/java-8-support-message.html

Plugin with id 'me.tatarka.retrolambda' not found. Open File\

处理办法：删除app的build.gradle的dependencies中：classpath 'me.tatarka:gradle-retrolambda:3.2.5'； 
删除project的build.gradle中：apply plugin: 'me.tatarka.retrolambda'