Hello, If we publish a kotlin mpp library for bintray, for example, I’ve seen that by default all publications go inside the same folder version (

js

,

jvm

,

macosX64

, etc.). But when our client is consuming the library with:

implementation("com.company:project:1.0.0")

It cannot be automatically choose the correct one, for example, a jvm gradle kts project does not work with this from my tests. Can we still use this way or need we publish everything separately? If we can use together, how can we do it?

implementation("com.company:project-jvm:1.0.0")

implementation("com.company:project-js:1.0.0")

implementation("com.company:project-macos_x64:1.0.0")

Hi all, I have a general question about using libraries. I have a project that exports to iOS, Android, and JS. I needed to pull apollo-graphql into my project. Apollo-graphql only supports iOS and Android at this time. Since there is no JS support, I'm unable to add the library dependency to the "common" sourceSets, so I'm unable to share that work for iOS and Android within my project.. It seems like I could create a separate project/repository that exports the iOS/Android artifacts that I need, but that's pretty heavyweight. Is there a better way to accomplish what I want?

Hi, I'm trying to compile a kotlin mp project and to use actual/expect, but when I try to compile with gradle I get this:

> Task :android:compileDebugKotlin FAILED
e: /home/pablo/devel/projects/tool_framework_multi_platform/src/androidMain/kotlin/com/senaptec/toolframework/ui/Video.kt: (3, 1): The feature "multi platform projects" is experimental and should be enabled explicitly

I've added some extra options for the compiler in my build.gradle, but seems to dont have any effect on the error:

Hi everyone. Does kotlin multiplatform provide a way to load a .json file? right now, I am sending the .json file as an argument from my android project and it works but it will be good if I can remove this dependency and put it solely in kotlin multiplatform.

whats the easiest way to start the jvm backend and the js frontend in one gradle task? basically start the jvmRun task in the background and then run the jsRun task. i mean i can do

./gradlew jvmRun &

and then

./gradlew jsRun

but is it possible with just one gradle task?

Is there any way of doing something like this On common.kt

expect fun foo(font: UIFont)

I mean, having some platform specific parameter on the expect? Or do I have to resort to use

Any

? Thanks!

Can I set my Android target to output a JAR specifically, since it defaults to AAR?

if i am developing a mp plugin that targets android/js/python on windows - what target do I use so it can be called from python running on windows?

I'm looking at integrating a third party dependency that I'd like to be able to call from my Kotlin framework, it currently only exists as an SDK for iOS and Android, I'm wondering what are some approaches you've used to structure something like this, do you just build an expect / actual wrapper around the third party sdk?

Hello everyone, I'm working on my first mpp project (Commons/JS/JVM) and have some trouble with importing the Webjar generated from the jsMain. How am i supposed to import the Webjar from my jsMain in my jvmMain?

it's rather annoying that i can't have both Serializable and JsExport at the same time

@JsExport
//@Serializable
@ExperimentalJsExport
data class Blah(
    var name: String? = null,
)

or

//@JsExport
@Serializable
//@ExperimentalJsExport
data class Blah(
    var name: String? = null,
)

With both of them, i get this error

e: java.lang.AssertionError: Properties without fields are not supported com.company.Blah.Companion_instance

how can i export classes from my common module to javascript?

@JSExport

annotation is only available in the js lib

is there a Kotlin Multiplatform Date class? The one in https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.js/-date/ says it's supported on JVM, JS and Common, but not seeing anything when I Ctrl+Space in IntelliJ in a Common Module on 1.4 M2

I have a multiplatform project (android + ios) which includes a 'commonTest'. How do i run just the common tests on jvm (i.e. not as instrumented platform tests)?

Hey! I'm sure this is a simple question but I am unable to fix it. 😔 I imported a multiplatform project from GitHub using Intellij. Intellij doesn't automatically recognize the Gradle configuration. So I have to manually use the terminal for building the project, running the Android app e.t.c 🤔 Intellij handles other multiplatform projects well and I am able to run app and use the Gradle tasks in the window. Can someone help? 🙂

Hello everyone, where can I get a detailed info on how the architecture of kotlin multiplatform works. like how exactly does it compile for multiple platforms.

Many crossplatform tools like Xamarin and React Native have some way of dealing with navigation (going from one screen to another) from the shared/common code - usually by providing a NavigationService either included by the framework or from libraries. Anyone knows about a thing like that for kotlin-multiplatform?

Anybody here been able to add macosX64 to multiplatform library to target catalyst? If so, could you share your build.gradle snippets?

Can someone explain me something? I am using Kotlin on iOS and trying to implement an MVP architecture. I use a

WeakReference

to hold a reference to a View object from Kotlin, to try and avoid memory leaks. But these objects do not seem to get deallocated immediately when they go out of scope. This is annoying for me as I use iOS

UIViewController

as the view object, and the expectation is that these will have

deinit

called as soon as they are dismissed. I have tried the project

icerockdev/moko-mvvm

. In their iOS sample project

sample6

, the memory leak does not seem to occur, and the view has

deinit

invoked immediately. I have read the

moko-mvvm

source code and I think their implementation is the same as mine. I can’t understand this.

@mbonnin A few colleagues and I are creating a project that has a GraphQL server as backend. Currently, the project is for Android and iOS only. Apollo supports KMP for Android and iOS, so this is great! Thank you and your team! 🙂 But thinking about the future: Does Apollo have plans to support JavaScript (or WebAssembly) for KMP as well? If not, would there be an alternative way to support Apollo Client on the KMP-JS target?

Hey, does anyone have any idea how to use resources (JSON files, images) in common code and have them exported to iOS and Android (or other platforms, too)? It’s possible for me to just store data in custom classes instead of JSON and copy new image assets to each application individually, but I’d rather not do that. If I’m not mistaken, it’s possible to create a dynamic framework on iOS for this, as well as an Android library on Android, so I’d imagine it’d be possible with some custom build.gradle. Do any of you have any experience with this? Thanks!

I'm trying to create the

packForXcode

Gradle task described here. But I'm getting the following error:

Unresolved reference: targets

. Basically

kotlin.targets

is unresolved here 😞 Do you have any ideas how to solve it?

Does anyone know how to solve this? I'm trying to use Firestore's IgnoreExtraProperties on KMP.

// Common
expect annotation class IgnoreExtraProperties()

// Android
actual typealias IgnoreExtraProperties = com.google.firebase.firestore.IgnoreExtraProperties

However, when I try to run it, I get a

This class does not have a constructor

. I also did this but no luck. Maybe it's because the actual annotation is just an interface?

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE})
public @interface IgnoreExtraProperties {
}

Anyway, any help would be greatly appreciated!

What is the cause of this error? It happens when I am have a multiplatform lib dependency

> Task :generatePomFileForAndroidReleasePublication FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':generatePomFileForAndroidReleasePublication'.
> Could not apply withXml() to generated POM
   > More than one variant of project :klock matches the consumer attributes:
       - Configuration ':klock:releaseApiElements' variant android-aidl:
           - Unmatched attributes:
               - Found artifactType 'android-aidl' but wasn't required.
               - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
           - Compatible attributes:
               - Required com.android.build.api.attributes.BuildTypeAttr 'release' and found compatible value 'release'.
               - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
               - Required org.jetbrains.kotlin.platform.type 'androidJvm' and found compatible value 'androidJvm'.
       - Configuration ':klock:releaseApiElements' variant android-manifest:
           - Unmatched attributes:
               - Found artifactType 'android-manifest' but wasn't required.
               - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
           - Compatible attributes:
               - Required com.android.build.api.attributes.BuildTypeAttr 'release' and found compatible value 'release'.
               - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
               - Required org.jetbrains.kotlin.platform.type 'androidJvm' and found compatible value 'androidJvm'.
       - Configuration ':klock:releaseApiElements' variant android-renderscript:
           - Unmatched attributes:
               - Found artifactType 'android-renderscript' but wasn't required.
               - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
           - Compatible attributes:
               - Required com.android.build.api.attributes.BuildTypeAttr 'release' and found compatible value 'release'.
               - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
               - Required org.jetbrains.kotlin.platform.type 'androidJvm' and found compatible value 'androidJvm'.
       - Configuration ':klock:releaseApiElements' variant android-symbol-with-package-name:
           - Unmatched attributes:
               - Found artifactType 'android-symbol-with-package-name' but wasn't required.
               - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
           - Compatible attributes:
               - Required com.android.build.api.attributes.BuildTypeAttr 'release' and found compatible value 'release'.
               - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
               - Required org.jetbrains.kotlin.platform.type 'androidJvm' and found compatible value 'androidJvm'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at <https://help.gradle.org>

BUILD FAILED in 1s
14 actionable tasks: 1 executed, 13 up-to-date

I've asked in here before, and will again. For those of you publishing libraries that support multiple architectures, is there an easier method other than acquiring access to machines of the support hardware and creating a build? To publish a library for all platforms I will need a mac, windows, and linux on a couple types of hardware. I see there is support for cross-platform compilation in the kotlin/native compiler, however does not seem possible from the multiplatform gradle plugin. Anyone have insight into this and when/if this situation will get better?

Why cant you use RxJava with KMP? Im guessing its because of the Schedulers which have no implementation backing for the different target platforms? Seems odd though that i can add it as a dependency, but the namespaces and classes are just not there - an error would be nice

Hello, Is it possible to integrate a kotlin native project (otherKnLib) as project dependencies (source folder) in another kotlin native project (common) ?

- rootProject
	- app
	- iOS
	- common
		- src
			- androidMain
			- commonMain
			- ...
		- build.gradle
	- otherKnLib
		- src
			- androidMain
			- commonMain
			- ...
		- build.gradle
	settings.gradle
	build.gradle

I tried to import my lib in the differents sourceSets dependencies in the common module, but I suppose I also have to specify the "target" (common, android, ios) for each sourceSet

sourceSets {
	val commonMain by getting {
		implementation(project(":otherKnLib")
	}

	val androidMain by getting {
		implementation(project(":otherKnLib")
	}

	val iosMain by getting {
		implementation(project(":otherKnLib")
	}
}

In this case, when i try to build, i got an

Unresolved reference

Any idea ? Thanks in advance :)

I'm about to embark on creating a multiplatform library for ios and Android. I don't want to spin my wheels getting started. I'm worried about running into outdated documentation. Where is the most up-to-date information about getting started?

Are there any other desktop applications built with Kotlin/Native besides my own Wraith Master project? I assume there are, but I can't name any.