引用ButterKnife之后。还需要配置两个文件：

@H_502_12@1.在project的build.gradle中

@H_502_12@

dependencies {
    classpath 'com.android.tools.build:gradle:2.3.3'
    classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}

@H_502_12@@H_502_12@2.在module的build.gradle中

compile 'com.jakewharton:butterknife:8.8.1'
apt 'com.jakewharton:butterknife-compiler:8.8.1'

@H_502_12@这时butterknife的环境就配置好了，可以运行测试一下