how to fix "cannot be provided without an @Provides-annotated method." - Kotlin

Question

whenever i try to run the application i am facing this error:

error: [Dagger/MissingBinding] api.PrayerTimesInterface cannot be provided without an @Provides-annotated method.

and this is the interface:

    @GET("calendar")
suspend fun getPrayerTimes(
    @Query("latitude") latitude: Double,
    @Query("longitude") longitude: Double,
    @Query("method") method: Int,
    @Query("month") month: Int,
    @Query("year") year: Int,
): Response<PlayerTime>

@GET("calendarByAddress")
suspend fun getPrayerAddress(
    @Query("address") address: String,
    @Query("method") method: Int,
    @Query("month") month: Int,
    @Query("year") year: Int,
): Response<PlayerTime>
}

i tried to add "@Provides" but still facing the same error. the same code available in different version of the app and it's working fine.

i tried the solution here: How to fix "cannot be provided without an @Provides-annotated method" error in dagger2 library

but it didn't work for me

did i do anything wrong here?

You need to add a provider method for `PrayerTimesInterface` in your network module or whichever module you are using for it .https://developer.android.com/training/dependency-injection/dagger-android — ADM, Jun 04 '21 at 06:13

score 2 · Accepted Answer · answered Jun 04 '21 at 06:32

2

Interface classes cannot be directly injected as they do not have constructors. I suppose you are using the PrayerTimesInterface with Retrofit. So inject PrayerTimesInterface with Retrofit's create method.

In module class

@Provides
internal fun providesPrayerTimes(): PrayerTimesInterface {
        return Retrofit.Builder().build().create(PrayerTimesInterface::class.java)
    }

You can also create Retrofit injection with all the options required and take it in providesPrayerTimes method to create PrayerTimesInterface

answered Jun 04 '21 at 06:32

Nataraj KR

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Thank you for clarifying, now its working – user2 Jun 04 '21 at 07:26
is it possible to help me here? https://stackoverflow.com/questions/67820655/how-to-open-link-from-api-in-fragment-kotlin-retrofit – user2 Jun 04 '21 at 07:27

score 0 · Answer 2 · answered Sep 04 '22 at 07:55

For some one it may help.

Make sure you bind your implementation and interface in module kotlin file.

in the kotlin file which marked with @module annotation, would be having all bindings. 
In these bindings you need to mention the newly created interface and its implementation.

how to fix "cannot be provided without an @Provides-annotated method." - Kotlin

2 Answers2