Dependency requires core library desugaring to be enabled

[Monabr]

Dependency 'dev.gitlive:firebase-config-android-debug:2.0.0' requires core library desugaring to be enabled
           for :shared.

I believe this should be fixed.

[Reedyuk]

Can you post your build gradle, sounds like you might be adding the dependancy incorrectly.

[Monabr]

@Reedyuk I believe nothing special here

sourceSets {
   ...
   commonMain.dependencies {
      implementation("dev.gitlive:firebase-analytics:2.0.0")
      implementation("dev.gitlive:firebase-auth:2.0.0")
      implementation("dev.gitlive:firebase-database:2.0.0")
      implementation("dev.gitlive:firebase-firestore:2.0.0")
      implementation("dev.gitlive:firebase-functions:2.0.0")
      implementation("dev.gitlive:firebase-messaging:2.0.0")
      implementation("dev.gitlive:firebase-storage:2.0.0")
      implementation("dev.gitlive:firebase-installations:2.0.0")
      implementation("dev.gitlive:firebase-config:2.0.0")
      implementation("dev.gitlive:firebase-perf:2.0.0")
      implementation("dev.gitlive:firebase-crashlytics:2.0.0")
   }
   ...
}

[Reedyuk]

What version of the JDK are you targeting? just wondering if its an issue with an older version being used?

[Monabr]

@Reedyuk

androidTarget {
        compilations.all {
            kotlinOptions {
                jvmTarget = "17"
                freeCompilerArgs = listOf(
                    "-opt-in=kotlinx.serialization.ExperimentalSerializationApi",
                    "-Xno-param-assertions",
                    "-Xno-call-assertions",
                    "-Xno-receiver-assertions",
                    "-Xexpect-actual-classes"
                )
            }
        }
    }
    
    
    android {
       compileOptions {
        isCoreLibraryDesugaringEnabled = true <--- added with your liblary

        sourceCompatibility = JavaVersion.VERSION_17
        targetCompatibility = JavaVersion.VERSION_17
      }
    }

[Reedyuk]

Just for reference, when you enable this property, does your project work?
Sorry, i have not come across this issue before, so its interested to see.
I think this only affects users who are using Android Build tools 4.x.x
I have been using 7.x.x and never came across this.

[Monabr]

@Reedyuk I don't really know for now. Currently I am writing implementations for IOS of my common classes. But without isCoreLibraryDesugaringEnabled gradle did not sync.

My gradle version: 8.5.2

[Reedyuk]

gradle is fine, my guess is you have this somewhere:

com.android.tools.build:gradle:4.x.x

And this is version 4.x.x

You highlight that maybe what we need is an example KMP(with compose) that uses the library.

[Monabr]

@Reedyuk After searching I see that I don't use com.android.tools.build.

I have:
com.android.application
com.android.library
with gradle version if we are talking about android plugins.

[Reedyuk]

Whats your min android version you are targeting?

[Reedyuk]

This seems to shed some light:
https://medium.com/androiddevelopers/support-for-newer-java-language-apis-bca79fc8ef65
Looks to me like its more related to android than it is this project. I would imagine you would have to add that property for any other libs.

[Monabr]

You highlight that maybe what we need is an example KMP(with compose) that uses the library.

@Reedyuk I have reproduce example:

1. Create project from JetBrains KMP template https://kmp.jetbrains.com/
2. Add dependencies that I posted above
3. Run ./gradlew assembleDebug

Project will not build and throw the error I posted.

Whats your min android version you are targeting?
Looks to me like its more related to android than it is this project. I would imagine you would have to add that property for any other libs.

I have way over 21 min sdk

minSdk = 28
targetSdk = 35

[Reedyuk]

ok thanks for the report

[Daeda88]

Desugaring is required for the config module as of #553 @Reedyuk and @Monabr due to the use of Kotlinx datetime which requires it as well. Only core library desugaring is required https://github.com/Kotlin/kotlinx-datetime?tab=readme-ov-file#using-in-your-projects

[Monabr]

Desugaring is required for the config module as of #553 @Reedyuk and @Monabr due to the use of Kotlinx datetime which requires it as well. Only core library desugaring is required https://github.com/Kotlin/kotlinx-datetime?tab=readme-ov-file#using-in-your-projects

According to the docs If you target Android devices running below API 26 we need desugaring. And according to this web-site https://apilevels.com/ API 26 is 95.5% of users.

I believe you can safely update minSdk to 26.