Dagger deprecated modules

Question

I am new to Dagger. I am creating a simple application using MVVM and retrofit and Dagger in android. I created 2 Modules - AppModule and NetworkModule.Added these modules to my Appcomponent. In my Application class when I try to build modules, the show as deprecated.

NetworkModule.class

@Module
public class NetworkModule {

String mBaseURL;

public NetworkModule(String baseUrl){
    this.mBaseURL = baseUrl;
}

@Provides
@Singleton
Gson provideGson() {
    GsonBuilder gsonBuilder = new GsonBuilder();
    gsonBuilder.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES);
    return gsonBuilder.create();
}

@Provides
@Singleton
Retrofit provideRetrofit(Gson gson, OkHttpClient okHttpClient) {
    return new Retrofit.Builder()
            .addConverterFactory(GsonConverterFactory.create(gson))
            .baseUrl(mBaseURL)
            .client(okHttpClient)
            .build();
}
}

AppModule.class

@Module
public class AppModule {

private Application mApplication;

public AppModule(Application application){
    this.mApplication = application;
}

@Provides
@Singleton
Application provideApplication(){
    return mApplication;
}

}

AppComponent.class

@Singleton
@Component(modules = {AppModule.class, NetworkModule.class})
public interface AppComponent {
    void inject(MainActivity mainActivity);
}

MyApplication.class

public class MyApplication extends Application {

private AppComponent appComponent;

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

    //appComponent = DaggerA
    AppComponent sdfds = DaggerAppComponent
            .builder()
            .appModule(new AppModule(this))
            .networkModule(new NetworkModule("http://myurl/nnn/ddd"))
            .build();
}

public AppComponent getAppComponent(){
    return appComponent;
}
}

I see the .appModule and .NetworkModule strikes through and says Deprecated. Can somebody explain me what the issue is. Thanks in advance.