Dagger2 component with more than one dependencies

Question

This is what I currently have and it works:

@FragmentScope
@Component(dependencies = {FacebookComponent.class}, 
           modules = {FragmentFacebookLoginModule.class})
public interface FragmentFacebookLoginComponent {

    void inject(FragmentFacebookLogin fragment);
}

Now I want to add another dependency. I changed it to this:

@Component(dependencies = {FacebookComponent.class, AnotherComponent.class}, 
           modules = {FragmentFacebookLoginModule.class})

But now I get this error message:

FragmentFacebookLoginComponent depends on more than one scoped component

How can I solve this? How can I have more than one dependencies?

If I remove the scope from one component I get this error message:

AnotherComponent (unscoped) cannot depend on scoped components

Answer 1

I found the answer here: https://stackoverflow.com/a/29619594/1016472

At the end I created a AppComponent with the right scope and let FacebookComponent and AnotherComponent extends this AppComponent.

FacebookComponent and AnotherComponent does not have it's own scope (I removed it).

Looks now like this:

@AppScope
@Component
public interface AppComponent {

}


@Component(modules = {FacebookModule.class})
public interface FacebookComponent extends AppComponent {

}


@Component(modules = {AnotherModule.class})
public interface AnotherComponent extends AppComponent {

}


@FragmentScope
@Component(dependencies = {FacebookComponent.class, AnotherComponent.class}, 
           modules = {FragmentFacebookLoginModule.class})
public interface FragmentFacebookLoginComponent {

    void inject(FragmentFacebookLogin fragment);
}