title: How to get rid of Incremental annotation processing requested warning?
body: <p>I have just started using android development and trying to use Room library. Since yesterday I am facing this warning message</p>
  
  <blockquote>
    <p>w: [kapt] Incremental annotation processing requested, but support is
    disabled because the following processors are not incremental:
    androidx.lifecycle.LifecycleProcessor (NON_INCREMENTAL),
    androidx.room.RoomProcessor (NON_INCREMENTAL).</p>
  </blockquote>
  
  <p>I have tried to research and fix but unable to avoid this error here is my grale.build file. please suggest/advice what I am doing wrong.</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  apply plugin: 'kotlin-android'
  
  apply plugin: 'kotlin-android-extensions'
  
  apply plugin: 'kotlin-kapt'
  
  android {
      compileSdkVersion 29
      buildToolsVersion "29.0.2"
      defaultConfig {
          applicationId "ps.room.bookkeeper"
          minSdkVersion 15
          targetSdkVersion 29
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
          javaCompileOptions {
              annotationProcessorOptions {
                  arguments = ["room.schemaLocation":"$projectDir/schemas".toString()]
              }
          }    
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      implementation fileTree(dir: 'libs', include: ['*.jar'])
      implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
      implementation 'androidx.appcompat:appcompat:1.0.2'
      implementation 'androidx.core:core-ktx:1.0.2'
      implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
      implementation 'com.google.android.material:material:1.0.0'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'androidx.test:runner:1.2.0'
      androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
  
      // life cycle dependencies
      def lifecycle_version = "2.0.0"
      implementation "android.arch.lifecycle:extensions:$lifecycle_version"
      kapt "android.arch.lifecycle:compiler:$lifecycle_version"
  
      //Room dependencies
      //def room_version = "2.1.0"
      implementation 'android.arch.persistence.room:runtime:2.1.0'
      kapt 'android.arch.persistence.room:compiler:2.1.0'
      //annotationProcessor 'android.arch.persistence.room:compiler:2.1.0'
  
  //    implementation "android.arch.lifecycle:extensions:$room_version"
  //    kapt "android.arch.persistence.room:compiler:$room_version"
  //    androidTestImplementation "android.arch.persistence.room:testing:$room_version"
  
      //implementation 'androidx.room:room-runtime:2.1.0'
      //annotationProcessor 'androidx.room:room-compiler:2.1.0'
  }
  </code></pre>