title: Android Studio 3.0 Warning: Using incompatible plugins for the annotation processing
body: <p>After update Android Studio to 3.0 version I have warning:</p>
  
  <pre><code>Error:android-apt plugin is incompatible with the Android Gradle plugin.  Please use 'annotationProcessor' configuration instead.
  </code></pre>
  
  <p>I tried to rewrite my gradle source ,but I still have a warning.
  Here is a source</p>
  
  <pre><code>buildscript {
  repositories {
      google()
      jcenter()
  }
  dependencies {
      classpath 'com.android.tools.build:gradle:3.0.0'
      classpath 'io.realm:realm-gradle-plugin:0.89.+'
  }
  }
  allprojects {
  repositories {
      google()
      jcenter()
  }
  }
  task clean(type: Delete) {
  delete rootProject.buildDir
  }
  
  
  
  
  apply plugin: 'com.android.application'
  android {
  compileSdkVersion 26
  defaultConfig {
      applicationId "com.syncapp"
      minSdkVersion 21
      targetSdkVersion 26
      versionCode 1
      versionName "1.0"
      testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  }
  
   buildTypes {
      release {
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      }
  }
  }
  
  dependencies {
  implementation fileTree(include: ['*.jar'], dir: 'libs')
  implementation 'com.android.support.constraint:constraint-layout:1.0.2'
  testImplementation 'junit:junit:4.11'
  androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
  implementation 'com.android.support:support-v4:27.0.1'
  implementation 'com.android.support:appcompat-v7:27.0.1'
  implementation 'com.android.support:design:27.0.1'
  compile 'org.greenrobot:eventbus:3.1.1'
  compile 'com.google.code.gson:gson:2.6.2'
  compile 'com.squareup.retrofit2:retrofit:2.1.0'
  compile 'com.squareup.retrofit2:converter-gson:2.1.0'
  
  compile 'com.squareup.okhttp:okhttp:2.7.5'
  compile 'com.squareup.okhttp:mockwebserver:2.7.5'
  
  compile 'com.jakewharton:butterknife:8.8.1'
  annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
  
  compile 'com.google.dagger:dagger:2.4'
  annotationProcessor 'com.google.dagger:dagger-compiler:2.4'
  
  
  }
  apply plugin: 'realm-android'
  </code></pre>
  
  <p>As you can see,in my project I'm using butterknife,dagger,okhttp,retrofit2 and     eventbus support libraries</p>
  
  <p>Any solution? I can't run my app
  Thanks</p>