Presenter cannot be provided without an @Provides-annotated method

Question

I'm struggling seeing why I get this error: Presenter cannot be provided without an @Provides-annotated method.

I have even tried to just strip out everything and make it as simple as possible, but I still get the error. What am I doing wrong?

Component:

@Component(modules = [SplashScreenModule::class])
interface SplashScreenComponent {
   fun presenter() : SplashScreenContract.Presenter
}

Module:

@Module
abstract class SplashScreenModule {

   @Binds
   @SplashScreenScope
   abstract fun providesSplashScreenPresenter(presenter: SplashScreenPresenter) : SplashScreenContract.Presenter
}

Presenter:

class SplashScreenPresenter : SplashScreenContract.Presenter { ... }

Use a builder in the component with a BindsInstance, @BindsInstance abstract fun presenter()( presenter : StriSplashScreenContract.Presenterg ) : Builder — Vairavan, Nov 28 '18 at 00:03
But this will require me to provide the presenter when building the component. Let's say the presenter has some dependencies, can I use BindInstance then? — Aleksander Aleksic, Nov 28 '18 at 07:58
Dagger does not know how to either create (add `@Inject` on the constructor) or find (add a `@Provides` annotated method to a module) `SplashScreenPresenter`. You probably want constructor injection here, but you need to supply the presenter _somehow_. Please also [see the more general information here](https://stackoverflow.com/q/44912080/1837367) — David Medenjak, Nov 28 '18 at 09:25

score 0 · Answer 1 · answered Nov 28 '18 at 00:19

0

You need the @Inject annotation,

class SplashScreenPresenter @Inject constructor() : SplashScreenContract.Presenter { ... }

answered Nov 28 '18 at 00:19

Francesc

25,014
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Did not help, But why would I need the @Inject constructor if I'm not injecting anything to the presenter? – Aleksander Aleksic Nov 28 '18 at 07:41
1

@Inject when used in constructor also works as Provides. Tells Dagger to use that constructor to create an instance when needed. – Vairavan Nov 28 '18 at 14:47

score 0 · Answer 2 · answered Dec 02 '18 at 20:29

0

It was a silly mistake by me..

I annotated SplashScreenScope as @Qualifier instead of @Scope

answered Dec 02 '18 at 20:29

Aleksander Aleksic

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Presenter cannot be provided without an @Provides-annotated method

2 Answers2