Dagger 2.11 [dagger.android.AndroidInjector.inject(T)] Found a dependency cycle

Question

I am new to Dagger and learning implementation of Dagger 2.11 in an android application. I followed some tutorials and created a sample project. But I am getting this error :

Error:(19, 8) error: [dagger.android.AndroidInjector.inject(T)] Found a dependency cycle:
com.saharan.daggerart.DaggerArtApplication is injected at
com.saharan.daggerart.AppModule.provideApplicationContext(application)
com.saharan.daggerart.DaggerArtApplication is injected at
com.saharan.daggerart.AppModule.provideSharedPreferences(application)
android.content.SharedPreferences is injected at
com.saharan.daggerart.MainActivity.preferences
com.saharan.daggerart.MainActivity is injected at
dagger.android.AndroidInjector.inject(arg0)

AppComponent :

 @Singleton
@Component(modules = {AndroidInjectionModule.class, AppModule.class, ActivityModule.class})
public interface AppComponent {
    @Component.Builder
    interface Builder {
        @BindsInstance
        Builder application(Application application);
        AppComponent build();
    }
    void inject(DaggerArtApplication application);
}

AppModule:

@Singleton
@Module(subcomponents = {MainActivityComponent.class})
public class AppModule {

    @Provides
    @Singleton
    DaggerArtApplication provideApplicationContext(DaggerArtApplication application) {
        return application;
    }

    @Provides
    @Singleton
    SharedPreferences provideSharedPreferences(DaggerArtApplication application) {
        return application.getSharedPreferences(Constants.PrefKeys.PREF_NAME, Context.MODE_PRIVATE);
    }
}

ActivityModule:

@Module
public abstract class ActivityModule {
    @Binds
    @IntoMap
    @ActivityKey(MainActivity.class)
    abstract AndroidInjector.Factory<? extends Activity> bindMainActivity(MainActivityComponent.Builder builder);
}

MainActivityComponent:

@Subcomponent(modules = MainActivityModule.class)
public interface MainActivityComponent extends AndroidInjector<MainActivity> {
    @Subcomponent.Builder
    abstract class Builder extends AndroidInjector.Builder<MainActivity> {
    }
}

MainActivityModule:

@Module
public class MainActivityModule {

    @Provides
    String provideUserName() {
        return "Mr. Bond";
    }
}

And now MainActivity :

 public class MainActivity extends AppCompatActivity {

    @Inject String username;
    @Inject
    SharedPreferences preferences;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        AndroidInjection.inject(this);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

What am I doing wrong? Please help!!

Answer 1

Looks like a typo.

DaggerArtApplication provideApplicationContext(DaggerArtApplication application)

This means that Dagger needs an DaggerArtApplication to provide an DaggerArtApplication . I guess you wanted to say

DaggerArtApplication provideApplicationContext(Application application)

Which would bind DaggerArtApplication to Application .