Hello everybody I want to convert Dagger into Hilt but I m n

Question

Hello everybody I want to convert Dagger into Hilt but I m new at Hilt I get these non understandable errors What mistakes did I make Thanks in advance ```error Dagger MissingBinding com example feed feedApp cannot be provided without an Inject constructor or an Provides annotated method public abstract static class SingletonC implements HiltWrapper ActivityRetainedComponentManager ActivityRetainedComponentBuilderEntryPoint ^ com example feed feedApp is injected at com example feed dagger viewmodel FeedViewModelModule providePauseAbleObservable feedApp com example feed util PauseAbleObservable lt gt is injected at com example feed viewmodel FeedViewModel PauseAbleObservable com example feed viewmodel FeedViewModel is injected at com example feed viewmodel FeedViewModel HiltModules BindsModule binds vm dagger hilt android internal lifecycle HiltViewModelMap java util Map lt java lang String javax inject Provider lt androidx lifecycle ViewModel gt gt is requested at dagger hilt android internal lifecycle HiltViewModelFactory ViewModelFactoriesEntryPoint getHiltViewModelMap com example feed feedApp HiltComponents SingletonC com example feed feedApp HiltComponents ActivityRetainedC com example feed ``` FeedViewModelModule kt ``` Module InstallIn ActivityComponent class class FeedViewModelModule Provides fun providePauseAbleObservable feedApp FeedApp PauseAbleObservable lt gt return PauseAbleInterval System currentTimeMillis sportsFeedApp resources getInteger R integer pollingPeriodSeconds toLong TimeUnit SECONDS ``` PauseAbleObservable kt ```interface PauseAbleObservable lt T gt val observable Observable lt T gt fun pause fun resume ``` FeedViewModel kt ``` HiltViewModel class FeedViewModel Inject constructor private val feedRepository FeedRepository var pauseAbleObservable PauseAbleObservable lt gt ViewModel ```

Arun · Answer

Could you also show your FeedApp Is it marked with HiltAndroidApp

Hovhannes · Answer

< Arun> thanks for your reply Yes it s marked HiltAndroidApp FeedApp kt ``` HiltAndroidApp class FeedApp Application ```

Arun · Answer

Could you try changing to ``` Provides fun providePauseAbleObservable feedApp Application PauseAbleObservable lt gt ``` I think Hilt binds to Application instead of FeedApp

Hovhannes · Answer

< Arun> I I ve tried it I get the same errors again Results must show on a Fragment Are the errors depend on InstallIn But I used ActivityRetainedComponent and FragmentComponent it did nt help ``` Module InstallIn ActivityComponent class class FeedViewModelModule Provides fun providePauseAbleObservable feedApp FeedApp PauseAbleObservable lt gt return PauseAbleInterval System currentTimeMillis sportsFeedApp resources getInteger R integer pollingPeriodSeconds toLong TimeUnit SECONDS ```

FunkyMuse · Answer

Have you tried installing into ```ViewModelComponent```

FunkyMuse · Answer

if that fails then you need to make sure your ```PauseAbleObservable lt JvmSuppressWildcards gt ``` if that fails then you need the type set correctly

FunkyMuse · Answer

if that fails then you need to annotate your activity with AndroidEntryPoint as well

Hovhannes · Answer

I think the error is fixed but now I get this error AndroidEntryPoint is marked public final class SportsFeedApp extends android app Application ^ Expected HiltAndroidApp to have a value Did you forget to apply the Gradle

Arun · Answer

Are you using Kotlin 1 5 20

Hovhannes · Answer

< Arun> Yes

Arun · Answer

It is a known bug <https github com google dagger issues 2684 issuecomment 860250964> lt please follow this in the mean time

Hovhannes · Answer

< Arun> the previous issue has fixed but now I get this error man facepalming I marked AndroidEntryPoint in Fragments Activities Unable to start activity ComponentInfo com example feed com example feed MainActivity java lang RuntimeException Cannot create an instance of class com example feed viewmodel FeedViewModel at android app ActivityThread performLaunchActivity ActivityThread java 3449 at android app ActivityThread handleLaunchActivity ActivityThread java 3601 at android app servertransaction LaunchActivityItem execute LaunchActivityItem java 85 at android app servertransaction TransactionExecutor executeCallbacks TransactionExecutor java 135 at android app servertransaction TransactionExecutor execute TransactionExecutor java 95 at android app ActivityThread$H handleMessage ActivityThread java 2066 at android os Handler dispatchMessage Handler java 106 at android os Looper loop Looper java 223 at android app ActivityThread main ActivityThread java 7656 at java lang reflect Method invoke Native Method at com android internal os RuntimeInit$MethodAndArgsCaller run RuntimeInit java 592 at com android internal os ZygoteInit main ZygoteInit java 947 Caused by java lang RuntimeException Cannot create an instance of class com example feed viewmodel FeedViewModel at androidx lifecycle ViewModelProvider$NewInstanceFactory create ViewModelProvider java 221 at androidx lifecycle ViewModelProvider$AndroidViewModelFactory create ViewModelProvider java 278 at androidx lifecycle SavedStateViewModelFactory create SavedStateViewModelFactory java 112 at androidx lifecycle ViewModelProvider get ViewModelProvider java 185 at androidx lifecycle ViewModelProvider get ViewModelProvider java 150 at com example feed MainActivity onCreate MainActivity kt 36 at android app Activity performCreate Activity java 8000 at android app Activity performCreate Activity java 7984 at android app Instrumentation callActivityOnCreate Instrumentation java 1309 at android app ActivityThread performLaunchActivity ActivityThread java 3422 at android app ActivityThread handleLaunchActivity ActivityThread java 3601 at android app servertransaction LaunchActivityItem execute LaunchActivityItem java 85 at android app servertransaction TransactionExecutor executeCallbacks TransactionExecutor java 135 at android app servertransaction TransactionExecutor execute TransactionExecutor java 95 at android app ActivityThread$H handleMessage ActivityThread java 2066 at android os Handler dispatchMessage Handler java 106 at android os Looper loop Looper java 223 at android app ActivityThread main ActivityThread java 7656 at java lang reflect Method invoke Native Method at com android internal os RuntimeInit$MethodAndArgsCaller run RuntimeInit java 592 at com android internal os ZygoteInit main ZygoteInit java 947 Caused by java lang InstantiationException java lang Class lt com example feed viewmodel FeedViewModel gt has no zero argument constructor MainActivity kt ```class MainActivity AppCompatActivity private lateinit var model FeedViewModel private lateinit var navController NavController override fun onCreate savedInstanceState Bundle super onCreate savedInstanceState setContentView R layout activity main ``` FeedViewModel kt ``` HiltViewModel class FeedViewModel Inject constructor private val feedRepository FeedRepository private val pauseAbleObservable PauseAbleObservable lt gt ViewModel ```