rxAndroid rxlifecycle RetroLambda, Lambda Error

• 1. RxAndroid를 적용해보고 HelloWorld를 찍어보자.
• Crunching RxAndroid — Part 2

rxlifecycle RetroLambda, Lambda 형식이 먹히지 않을 때

buildscript {
    ...
    dependencies {
        ...
        classpath 'me.tatarka:gradle-retrolambda:3.1.0'
    }
}

apply plugin: 'me.tatarka.retrolambda'


android {
    ...
    configurations.all {
        resolutionStrategy.force 'com.google.code.findbugs:jsr305:3.0.1'
    }
    ...
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    ...
}