lateinit property for String has not been initialized

Code for Appmodule class

@Module
@InstallIn(SingletonComponent::class)
object AppModule{

    @Singleton
    @Provides
    fun provideApplication(@ApplicationContext app: Context): BaseApplication{
        return app as BaseApplication
    }

    /* provideRandomString is a dependency we can inject to something else.
       This string object is gonna exist as long as the Application is alive */
    @Singleton
    @Provides
    fun provideRandomString(): String{
        return "Hey look a random string"
    }

}

Code for Activity class

@AndroidEntryPoint
class HiltTestActivity : AppCompatActivity() {
    private val TAG: String = "AppDebug"

    /* Hilt will be looking to any modules for any dependencies that has type string and will inject here */
    @Inject
    lateinit var someRandomString:String

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_hilt_test)

        Log.d(TAG, "onCreate: $someRandomString")
    }
}

Caused by: kotlin.UninitializedPropertyAccessException: lateinit property someRandomString has not been initialized
        at com.example.mvvmtester.view.HiltTestActivity.getSomeRandomString(HiltTestActivity.kt:17)
        at com.example.mvvmtester.view.HiltTestActivity.onCreate(HiltTestActivity.kt:23)
        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)