When I publish my KMM library to Maven and try to ...

# multiplatform

[Jeff Tycz]

When I publish my KMM library to Maven and try to add my dependency to an Android application it seems I have to declare it like this for it to work

releaseImplementation 'io.github.tyczj:myLib-android:0.X.X@aar'
debugImplementation 'io.github.tyczj:myLib-android-debug:0.X.X@aar'

What do I have to do to be able to add the dependency like one would for basically every other KMM or Android library?

like this is what I am looking for

implementation 'io.github.tyczj:myLib-android:0.X.X

[russhwolf]

Hard to say without seeing your gradle config. You should get it the way you want by default when you apply the maven-publish plugin. Docs here if it helps https://kotlinlang.org/docs/mpp-publish-lib.html#publish-an-android-library

[Jeff Tycz]

@russhwolf here is the project, its just a simple logging library. I believe I followed everything that link says to do

[russhwolf]

Hmm. Maybe your staging build type is causing an issue. But I'm not sure since you don't publish it. If you add matchingFallbacks = listOf("release", "debug") to your consuming app, does it help?

[Jeff Tycz]

Fall backs don't help. And the library is published

[russhwolf]

I mean the staging build type isn't published

[russhwolf]

But maybe having it there still impacts how it gets consumed

[russhwolf]

Not totally sure but that was the most nonstandard thing that jumped out at me compared to the default library config

[Jeff Tycz]

how would I publish the staging build type? I just assumed everything was handled already with that

[russhwolf]

Add it to this list https://github.com/tyczj/Lumberjack/blob/master/build.gradle.kts#L30

[Jeff Tycz]

so it would look like this?

publishLibraryVariants("release", "debug", "staging")

[russhwolf]

yeah give that a try

[russhwolf]

alternatively you could drop the staging build type from the library

[Jeff Tycz]

when I remove the staging i get a warning after a gradle sync saying

Failed to resolve: Lumberjack-android-1.0.2-samplessources

When I do a build I get this gradle error

Execution failed for task ':app:checkDebugAarMetadata'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
   > Could not resolve io.github.tyczj.lumberjack:Lumberjack-android:1.0.2.
     Required by:
         project :app
      > No matching variant of io.github.tyczj.lumberjack:Lumberjack-android:1.0.2 was found. The consumer was configured to find a runtime of a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'debug', attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm' but:
          - Variant 'commonMainMetadataElements-published' capability io.github.tyczj.lumberjack:Lumberjack-android:1.0.2:
              - Incompatible because this component declares a usage of 'kotlin-api' of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'common' and the consumer needed a runtime of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm'
              - Other compatible attribute:
                  - Doesn't say anything about com.android.build.api.attributes.BuildTypeAttr (required 'debug')
          - Variant 'metadataApiElements-published' capability io.github.tyczj.lumberjack:Lumberjack-android:1.0.2:
              - Incompatible because this component declares a usage of 'kotlin-metadata' of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'common' and the consumer needed a runtime of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm'
              - Other compatible attribute:
                  - Doesn't say anything about com.android.build.api.attributes.BuildTypeAttr (required 'debug')
          - Variant 'releaseApiElements-published' capability io.github.tyczj.lumberjack:Lumberjack-android:1.0.2 declares a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm':
              - Incompatible because this component declares an API of a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'release' and the consumer needed a runtime of a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'debug'
          - Variant 'releaseRuntimeElements-published' capability io.github.tyczj.lumberjack:Lumberjack-android:1.0.2 declares a runtime of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm':
              - Incompatible because this component declares a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'release' and the consumer needed a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'debug'