so I m injecting a couple of dependencies into my ViewModel

Question

so I m injecting a couple of dependencies into my ViewModel like so ``` HiltViewModel class AuthenticationViewModel Inject constructor private val determineAuthStatus DetermineAuthStatus private val populateUserPrefs PopulateUserPrefs ViewModel ``` and I want to use the viewmodel in a composable like so ```val viewModel AuthenticationViewModel = hiltViewModel ``` but I get that the viewmodel does not have any zero argument constructors I ve already created the module for these 2 deps to be provided this composable that i m using the viewmodel in is started inside an Activity which I ve set AndroidEntryPoint on what am I missing

Chris Fillmore · Answer

Can you show the module

Berkeli Alashov · Answer

I usually check this when it happens to me <https dzolnai medium com dagger hilt viewmodelclass has no zero argument constructor causes 76d40007eb28|https dzolnai medium com dagger hilt viewmodelclass has no zero argument constructor causes 76d40007eb28>

FunkyMuse · Answer

Did you add HiltAndroidApp in your Application

oday · Answer

this is the module <https github com Odaym Booksum blob master authentication src main java com saltserv authentication AuthenticationModule kt>

oday · Answer

I don t think I need a module even

oday · Answer

the problematic file there is AuthenticationViewModel

oday · Answer

so the MainActivity calls Authentication composable Authentication composable creates new instance of AuthenticationViewModel AuthenticationViewModel injects populateUserPrefs and determineAuthStatus AuthenticationViewModel has HiltViewModel and MainActivity has AndroidEntryPoint Application class has HiltAndroidApp populateUserPrefs and determineAuthStatus both have Inject constructor so that Hilt could see them

oday · Answer

what if it has something to do with MainActivity being in another module than the rest of the files like Authentication and AuthenticationViewModel

oday · Answer

so if I initialize the viewmodel in the same file where AndroidEntryPoint is defined using `by viewModels ` it works fine but if I initialize it inside the composable using `= viewModel ` it does the no zero argument constructor error

oday · Answer

I want to initialize it inside the composable I dont want to initialize it inside the activity and then pass the viewmodel to the composable that s just dumb

FunkyMuse · Answer

You need to enable aggregating task for hilt in your app module

oday · Answer

hmm what s that

oday · Answer

``` kapt correctErrorTypes true ```

oday · Answer

ah this ```hilt enableAggregatingTask = true ```

oday · Answer

that did nothing

oday · Answer

there is something fundamentally wrong with what s happening

oday · Answer

HALP

oday · Answer

despair

Reda AOUTEM · Answer

In your code you ve written `val viewModel AuthenticationViewModel = viewModel ` instead of `= hiltViewModel ` Could it be the mistake

oday · Answer

Tried that already

oday · Answer

Turned out to be an issue of multi module main activity that has AndroidEntryPoint is sitting in another package than where I m calling the composable

oday · Answer

Opted for single package instead of this headache