Butterknife配置beta

app-->build.gradle

apply plugin: 'com.android.application'
apply plugin: 'com.jakewharton.butterknife'
android {
    compileSdkVersion 25
    buildToolsVersion "25.0.1"
    defaultConfig {
    }
    buildTypes {
    }
}

dependencies {
    compile 'com.jakewharton:butterknife:8.5.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
}

Project -->build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.jakewharton:butterknife-gradle-plugin:8.5.1'
    }
}