Error creating a dependency declared in module

[franchin98]

Hello guys, I am developing an application to practice my skill's in Kotlin Multiplatform Mobile.

I have a problem creating a dependency that was already declared in a module.

This is my platformModule.kt file:

 actual val platformModule = module {
    single<CharacterLocalRepository> { CharacterSqldelightRepository(androidContext(), get()) }

    single<CharacterNetworkRepository> { CharacterApiRepository() }

    single<AuthClient> { GoogleAuthClient(androidContext()) }

    single<GetCharacterUseCase> {
        CharacterService(
            characterLocalRepo = get(),
            characterNetworkRepo = get(),
        )
    }
}

This is my viewModelModule.kt file:

 actual val viewModelModule = module {
    viewModel { AuthenticationViewModel(authClient = get()) }
    viewModel { MainViewModel(characterGetter = get(), loadNewCharactersUseCase = get()) }
    viewModel { SearchViewModel(searchCharacterUseCase = get()) }
}

My class AuthenticationViewModel:

 class AuthenticationViewModel(private val authClient: AuthClient) : ViewModel() {

    private val authResult: MutableStateFlow<AuthenticationResult> =
        MutableStateFlow(AuthenticationResult.Logout)
    val authenticationResult = authResult.asStateFlow()

    fun loginWithGoogle(onLoginSuccess: () -> Unit) {
        viewModelScope.launch(Dispatchers.IO) {
            authResult.value = authClient.signInWithGoogle {
                onLoginSuccess.invoke()
            }
        }
    }
}

My class GoogleAuthClient:

  
actual class GoogleAuthClient(private val context: Context) : AuthClient {

    private val webClientId = BuildConfig.WEB_CLIENT
    private val firebaseAuth: FirebaseAuth = Firebase.auth

    private val googleOption: GetGoogleIdOption = GetGoogleIdOption.Builder()
        .setFilterByAuthorizedAccounts(true)
        .setServerClientId(webClientId)
        .setAutoSelectEnabled(true)
        .setNonce(createNonce())
        .build()

    actual override suspend fun signInWithGoogle(onLoginSuccess: () -> Unit): AuthenticationResult {
        val credentialManager = CredentialManager.create(context)

        val request: GetCredentialRequest =
            GetCredentialRequest.Builder()
                .addCredentialOption(googleOption)
                .build()

        try {
            val result = credentialManager.getCredential(context, request)
            return handleSignIn(result, onLoginSuccess = { onLoginSuccess() })
        } catch (ce: GetCredentialException) {
            ce.printStackTrace()
            return AuthenticationResult.MessageError(error = ce.message!!)
        }
    }
}

In my libs.versions.toml file I added these dependencies:

  koinBom = "4.1.0-Beta5"

  koin-bom = { group = "io.insert-koin", name = "koin-bom", version.ref = "koinBom" }
  koin-core = { group = "io.insert-koin", name = "koin-core" }
  koin-compose = { group = "io.insert-koin", name = "koin-compose" }
  koin-compose-viewmodel = { group = "io.insert-koin", name = "koin-compose-viewmodel" }
  koin-androidx-compose = { group = "io.insert-koin", name = "koin-androidx-compose" }
  koin-android = { group = "io.insert-koin", name = "koin-android" }

The exception is org.koin.core.error.InstanceCreationException. This is the stacktrace
FATAL EXCEPTION: main (Ask Gemini) Process: com.softchin.marvelcatalog, PID: 23708 java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:588) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1103) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:578) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1103)  Caused by: org.koin.core.error.InstanceCreationException: Could not create instance for '[Factory: 'com.softchin.marvelcatalog.ui.viewmodels.AuthenticationViewModel']' at org.koin.core.instance.InstanceFactory.create(InstanceFactory.kt:58) at org.koin.core.instance.FactoryInstanceFactory.get(FactoryInstanceFactory.kt:38) at org.koin.core.registry.InstanceRegistry.resolveInstance$koin_core(InstanceRegistry.kt:113) at org.koin.core.scope.Scope.resolveFromRegistry(Scope.kt:325) at org.koin.core.scope.Scope.resolveFromContext(Scope.kt:315) at org.koin.core.scope.Scope.stackParametersCall(Scope.kt:285) at org.koin.core.scope.Scope.resolveInstance(Scope.kt:263) at org.koin.core.scope.Scope.resolve(Scope.kt:236) at org.koin.core.scope.Scope.getWithParameters(Scope.kt:227) at org.koin.viewmodel.factory.KoinViewModelFactory.create(KoinViewModelFactory.kt:41) at androidx.lifecycle.viewmodel.ViewModelProviderImpl_androidKt.createViewModel(ViewModelProviderImpl.android.kt:34) at androidx.lifecycle.viewmodel.ViewModelProviderImpl.getViewModel$lifecycle_viewmodel_release(ViewModelProviderImpl.kt:65) at androidx.lifecycle.viewmodel.ViewModelProviderImpl.getViewModel$lifecycle_viewmodel_release$default(ViewModelProviderImpl.kt:47) at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.android.kt:91) at org.koin.viewmodel.GetViewModelKt.resolveViewModel(GetViewModel.kt:60) at com.softchin.marvelcatalog.ComposableSingletons$AppKt$lambda-3$1.invoke(App.kt:89) at com.softchin.marvelcatalog.ComposableSingletons$AppKt$lambda-3$1.invoke(App.kt:29) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:109) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:35) at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:380) at org.koin.compose.KoinApplicationKt.KoinContext(KoinApplication.kt:179) at com.softchin.marvelcatalog.ComposableSingletons$AppKt$lambda-4$1.invoke(App.kt:29) at com.softchin.marvelcatalog.ComposableSingletons$AppKt$lambda-4$1.invoke(App.kt:28) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:109) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:35) at androidx.compose.material.MaterialTheme_androidKt.PlatformMaterialTheme(MaterialTheme.android.kt:23) at androidx.compose.material.MaterialThemeKt$MaterialTheme$1$1.invoke(MaterialTheme.kt:82) at androidx.compose.material.MaterialThemeKt$MaterialTheme$1$1.invoke(MaterialTheme.kt:81) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:109) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:35) at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:401) at androidx.compose.material.TextKt.ProvideTextStyle(Text.kt:396) at androidx.compose.material.MaterialThemeKt$MaterialTheme$1.invoke(MaterialTheme.kt:81) at androidx.compose.material.MaterialThemeKt$MaterialTheme$1.invoke(MaterialTheme.kt:80) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:109) at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:35) at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:380) at androidx.compose.material.MaterialThemeKt.MaterialTheme(MaterialTheme.kt:72)

can you help me solve this please? I written same problem in stackoverflow here.

Thank you so much. Greetings.

[moonggae]

I noticed in StackOverflow that you're using KoinContext in your App function. The error appears to be related to dependency resolution:

1. Check startKoin() call: Make sure startKoin() is properly called before calling the App() function.

2. Missing Android context registration: The stack trace shows a failure to create an AuthenticationViewModel instance, which is likely failing because GoogleAuthClient can't be created. This is happening because you haven't registered the Android context in your Koin container.

GoogleAuthClient requires a context parameter, and without properly registering the Android context using androidContext(), Koin can't provide this dependency.

Fix this by ensuring your Koin setup includes the Android context:

// In your Application class
startKoin {
    androidContext(this@YourApplication)
    modules(yourAppModules)
}

[franchin98]

Hello @moonggae 👋

I have the next code in my MarvelApp Application:

class MarvelApp: Application() {
    override fun onCreate() {
        super.onCreate()
        KoinInitializer(this@MarvelApp).init()
    }
}

My KoinInitializer class:

actual class KoinInitializer(private val context: Context) {
    actual fun init() {
        startKoin{
            androidContext(context)
            androidLogger()
            modules(platformModule, viewModelModule)
        }
    }
}

I do it this way so that my Koin Initializer is platform independent.

The idea is that the application can be migrated to iOS in the future.

I still don't understand where the error is.
I have another dependency that also uses the context and I didn't get this error.

Thanks for your support.

[moonggae]

Have you already initialized FirebaseApp before calling startKoin?

[franchin98]

I initialize FirebaseApp in the AuthClient implementation, i.n. GoogleAuthClient.

This is GoogleAuthClient:

actual class GoogleAuthClient(private val context: Context) : AuthClient {

    private val webClientId = BuildConfig.WEB_CLIENT

    //Here I get the instance of FirebaseAuth. 
    private val firebaseAuth: FirebaseAuth = Firebase.auth

    private val googleOption: GetGoogleIdOption = GetGoogleIdOption.Builder()
        .setFilterByAuthorizedAccounts(true)
        .setServerClientId(webClientId)
        .setAutoSelectEnabled(true)
        .setNonce(createNonce())
        .build()

    actual override suspend fun signInWithGoogle(onLoginSuccess: () -> Unit): AuthenticationResult {
        val credentialManager = CredentialManager.create(context)

        val request: GetCredentialRequest =
            GetCredentialRequest.Builder()
                .addCredentialOption(googleOption)
                .build()

        try {
            val result = credentialManager.getCredential(context, request)
            return handleSignIn(result, onLoginSuccess = { onLoginSuccess() })
        } catch (ce: GetCredentialException) {
            ce.printStackTrace()
            return AuthenticationResult.MessageError(error = ce.message!!)
        }
    }
}

Here I get the FirebaseAuth instance.

I know it's not the best way to get the instance in the concrete implementation, the ideal would be to receive it injected, but it hasn't worked in any way.

Thanks