title: Error: Could not find method annotationProcessor() for arguments
body: <p>I'm trying to import <strong>DBflow</strong> just as suggested in <a href="https://github.com/Raizlabs/DBFlow#including-in-your-project" rel="nofollow noreferrer">their readme</a>. After modifying the project-level build.gradle file and trying to sync, I get the following error:</p>
  
  <blockquote>
    <p>Error:(27, 0) Could not find method annotationProcessor() for arguments [com.github.Raizlabs.DBFlow:dbflow-processor:4.1.2] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.</p>
  </blockquote>
  
  <p>I'm using <strong>Android Studio 3.0.1</strong>, and <strong>Gradle Plugin 3.0.0</strong>.</p>
  
  <p>Here are my gradle files:</p>
  
  <p><strong>build.gradle</strong> (project)</p>
  
  <pre><code>// Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  buildscript {
  
      repositories {
          google()
          jcenter()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.0.0'
  
  
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          google()
          jcenter()
          maven { url "https://www.jitpack.io" }
      }
  
      def dbflow_version = "4.1.2"
  
      dependencies {
          annotationProcessor "com.github.Raizlabs.DBFlow:dbflow-processor:${dbflow_version}"
          compile "com.github.Raizlabs.DBFlow:dbflow-core:${dbflow_version}"
          compile "com.github.Raizlabs.DBFlow:dbflow:${dbflow_version}"
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  </code></pre>
  
  <p><strong>app/build.gradle</strong> (applicaton)</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 26
      buildToolsVersion "26.0.2"
  
      defaultConfig {
          applicationId "com.my.app.id"
          minSdkVersion 21
          targetSdkVersion 26
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          debug {
              buildConfigField "String", "BASE_URL", "\"http://myapiurl.com/\""
          }
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      repositories {
          mavenCentral()
          google()
          maven { url 'https://jitpack.io' }            
      }
  }
  
  dependencies {
      implementation fileTree(dir: 'libs', include: ['*.jar'])
      implementation 'com.android.support:appcompat-v7:26.1.0'
      implementation 'com.android.volley:volley:1.0.0'
      implementation 'com.android.support:support-v4:26.1.0'
      implementation 'com.android.support:design:26.1.0'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'com.android.support.test:runner:1.0.1'
      androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
  }
  </code></pre>
  
  <p>What might be the source of this problem and how solve it?</p>