Cannot use newer Dagger 2.11 API in Android

Question

I am trying to import Dagger 2 into a brand new project on Android Studio and having a look at the various guides and documentation, I am unable to use DaggerAppComponent

My Gradle settings are as follows:

build (Project)

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'

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

allprojects {
    repositories {
        jcenter()
    }
}

build (Module: app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"

    defaultConfig {
        applicationId "com.raywenderlich.todolist"
        minSdkVersion 19
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support:design:25.3.1'

    //Dagger 2
    compile 'com.google.dagger:dagger:2.11'
    compile 'com.google.dagger:dagger-android:2.11'
    annotationProcessor 'com.google.dagger:dagger-android-processor:2.11'
    annotationProcessor 'com.google.dagger:dagger-compiler:2.11'
}

The in my TodolistApplication.java class: I have this:

      @Override
  public void onCreate() {
    super.onCreate();

    DaggerAppComponent
            .builder()
            .application(this)
            .build()
            .inject(this);
  }

However Android Studio shows the following error:

Error:(21, 5) error: cannot find symbol variable DaggerAppComponent

I have tried rebuilding the project and importing various dagger files, however nothing seems to have worked.

Answer 1

Error:(21, 5) error: cannot find symbol variable DaggerAppComponent

The above error is not a dependency error. AppComponent must be first created before using it like below

@Module public class ApplicationModule {
   //all dependency provides here
}

@Component(modules = ApplicationModule.class) 
public interface ApplicationComponent {
}

Check this reference for complete understanding https://medium.com/@isoron/a-friendly-introduction-to-dagger-2-part-1-dbdf2f3fb17b