Hilt Activity must be attached to an @AndroidEntryPoint Application

Question

The app crashes as soon as it gets installed and throws the weird error above. I have annotated the activity as shown below as well as its child fragments.

@AndroidEntryPoint
    class HomeActivity : AppCompatActivity() {
        companion object{
           lateinit var currentUser: User
        }
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
    
            setContentView(R.layout.activity_home)
            val navController = Navigation.findNavController(this, R.id.home_nav)
            val bottomNavigationView: BottomNavigationView = findViewById(R.id.bottom_navigation)
            bottomNavigationView.setupWithNavController(navController)
            fetchCurrentUser()
        }

Also attaching the Application class which is mandatory for every app using Hilt as per the documentation

@HiltAndroidApp
class CoreApplication:Application()

and the logcat of the crash

Caused by: java.lang.IllegalStateException: Hilt Activity must be attached to an @AndroidEntryPoint Application. Found: class androidx.multidex.MultiDexApplication
        at dagger.hilt.android.internal.managers.ActivityComponentManager.createComponent(ActivityComponentManager.java:82)
        at dagger.hilt.android.internal.managers.ActivityComponentManager.generatedComponent(ActivityComponentManager.java:65)
        at com.example.vcare.home.Hilt_HomeActivity.generatedComponent(Hilt_HomeActivity.java:43)
        at com.example.vcare.home.Hilt_HomeActivity.inject(Hilt_HomeActivity.java:62)
        at com.example.vcare.home.Hilt_HomeActivity.onCreate(Hilt_HomeActivity.java:37)
        at com.example.vcare.home.HomeActivity.onCreate(HomeActivity.kt:27)
        at android.app.Activity.performCreate(Activity.java:7224)
        at android.app.Activity.performCreate(Activity.java:7213)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2926)

Answer 1

The solution to this problem was: Declare android:name = ".CoreApplication" in your AndroidManifest.xml file, in the <application .../>tag.

Answer 2

In my case, I faced an error with implementing a repository into the ViewModel class.

I followed some fixes to resolve the errors.

1. Adding entry point to activity class (AndroidEntryPoint)
2. Adding entry point to application class (HiltAndroidApp)
3. Adding name to manifest application android:name=".main.BaseApplication"
4. Adding @Inject to repository class

Now issue with Hilt with MVVM and clean architecture are resolved!