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.VER..