Dagger 2: error about subcomponents, but I don't have any subcomponents in my application

Question

I am trying to use Dagger 2 in my application. I keep getting this error:

Error: execution completed for task ': app: compileDebugJavaWithJavac'. java.lang.IllegalArgumentException: @ dagger.Module does not define subcomponents of element ()

I do not use subcomponents in the application at all, so I have no idea why this error occurs. I have one module and one component. Module:

@Singleton
@Module

public class ApplicationModule {

private final WSTApplication application;

public ApplicationModule(WSTApplication application) {
    this.application = application;
}

@Provides
public WSTApplication application() {
    return this.application;
}

@Provides
public Context applicationContext() {
    return this.application;
}

@Provides
Realm provideRealm() {
    return Realm.getDefaultInstance();
}

@Provides
RealmHelper providesRealmHelper(final Realm realm) {
    return new RealmHelper(realm);
}

@Provides
@Singleton
public WorkoutPresenter providesWorkoutPresenter(final RealmHelper helper) {
    return new WorkoutPresenter(helper);
}

}

And my component:

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

    void inject (MainActivity activity);

    WSTApplication application();

    Context applicationContext();

    Realm provideRealm();

    RealmHelper providesRealmHelper(Realm realm);

    WorkoutPresenter providesWorkoutPresenter(RealmHelper helper);

}

And here is the onCreate from my application:

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

    component = DaggerApplicationComponent.builder()
            .applicationModule(new ApplicationModule(this))
            .build();
}

DaggerApplicationComponent , , , - ? (Dagger_ApplicationComponent), .

Google, , , , . . .

, , build.gradle:

buildscript:

classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'

build.gradle:

apply plugin: 'com.neenbedankt.android-apt'

:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:design:24.2.1'
    compile 'com.google.dagger:dagger:2.1'
    compile 'com.android.support:support-v4:24.2.1'
    testCompile 'junit:junit:4.12'
    apt 'com.google.dagger:dagger-compiler:2.7'
    provided 'org.glassfish:javax.annotation:10.0-b28'
}

, ! Dagger2, , ( , ... , ). , .

Answer 1

com.neenbedankt.android-apt? .

The Dagger GitHub , Android.

dependencies {
    compile 'com.google.dagger:dagger:2.x'
    annotationProcessor 'com.google.dagger:dagger-compiler:2.x'
}

Dagger release .

, , .

Answer 2

, , API- Dagger : compile 'com.google.dagger:dagger:2.1' apt 'com.google.dagger:dagger-compiler:2.7'. @Module.subcomponents(), @Module (version 2.1) 2.7.

;

.