I’m facing this crash starting the app i’m developing:

    java.lang.ExceptionInInitializerError                                                                                              
 at com.innopro.b4work.newcode.di.ModulesKt.getDataModule(Modules.kt:74)

Caused by: org.koin.core.error.DefinitionOverrideException: Definition '[Single:'com.innopro.b4work.data.redux.analytics.FirebaseTracker']' try to override existing definition. Please use override option to fix it

when adding AvatarViewModel in a preexistent module

val profileModule = module {
  ... // Other modules and factories
  factory { (ui: ProfileFullPresenter.Contract) -> ProfileFullPresenter(ui, get(), get(), get()) }
  viewModel { AvatarViewModel(repository = get()) }
}

This presenter (ProfileFullPresenter) uses the same repository (PhotoRepository, who only has one implementation class (PhotoNetworkRepository) as a constructor dependency. So I thought to use get like the presenter does. But the crash is happening if I add my viewmodel declaration, not if I remove it.

This repository dependency is declared in another module:

val repositoryModule = module {
  ... // Other repositories
  factory { PhotoNetworkRepository(get()) }
}

It has a dependency (ApiService) declared in this module:

val dataModule = module {
… // Other dependencies
factory { PhotoApi.create() }
}

But according to the stacktrace it complains about that bean:

val analyticsModule = module {
  single { FirebaseTracker() }
  single { get<FirebaseTracker>() }
  single { AnalyticsPresenter(get()) }
}

I cannot understand the relationship between the error message and my viewmodel because it does not use this dependency and not also it’s dependencies declared in it’s constructor

All modules are declared inside startKoin function

modules(
    // more modules
    profileModule,
    // more modules
    dataModule,
    analyticsModule,
    repositoryModule,
    // more modules
  )