i am trying to understand what’s the build process of KMM on android side . any articles/blogs to understand this process ?

Hey! We’ve been building an SDK in KMM for nearly a year now. We wrote a case study about how we built our first version. Thought it might be useful to some folks here. https://www.unflow.com/post/kotlin-multiplatform-mobile We're actually live on Product Hunt today too if you want to know more about the product / share some support. It lets PMs and marketers publish and iterate on fully native onboarding carousels, Stories, and NPS pop ups instantly, without involving engineering. https://www.producthunt.com/posts/unflow

Is junit5 compatible with a KMP library which has a JS target?

Have you used new memory manager in your production iOS apps? Tap +1 if you have.👀

Do you think the viewmodels should be on kmm or should it be on native ?

Hi there, is it possible, with the embedAndSignAppleFrameworkForXcode to link the kmm framework to multiple targets in the app?

What's the status on HMPP and using things like

okio.Filesystem.SYSTEM

from

commonMain

when I only have JVM and macOS targets?

Hi all. With K\N this:

var onStateChanged: ((from: State, to: State) -> Unit)?

translated to:

@property void (^ _Nullable onStateChanged)(State *, State *) __attribute__((swift_name("onStateChanged")));

which makes this function signature problematic to read on iOS. Are there any way to pass/enforce argument name on k\n? PS. I mean that argument names

from

and

to

are ignored during kotlin to swift translation.

When compiling a multiplatform library for android what happens under the hood? Does the compiler compile

commonMain

and

AndroidMain

the same way any normal multi module android library written in kotlin is compiled or are there any other changes that the multiplatform plugin adds?

Hey all, has anyone got any tips for getting better stacktraces for exception thrown from the shared kotlin code on iOS specifically? Locally the stack traces are fine (example in thread), but in Firebase crashlytics I get this which isn't particularly helpful. I realise this is technically :not-kotlin: but I'm hoping it's close enough!

is there a non jvm way to format a double to string with a specific number of decimal places?

Is it possible to get the line number from a stacktrace in

mingw

?

hi, is it possible to use

kotlin.Result

on swift with generic? Seems generic is not recognized and when trying to get items on Swfit,

Any?

is the return type. In Kotlin

class SampleClazz {
    fun funcThatReturnKotlinResult(): Result<Int> {
        return Result.success(10)
    }
}

In Swift,

Int

generic is not being recognized:

Is it expected that a library published against Kotlin 1.7.0 can't be resolved in a project with Kotlin 1.6.10? The IDE shows multiple "Could not resolve XYZ" errors on the Build tab after sync. However the project compiles and runs just fine from the command line.

Hi folks! Thought I'd spend some time exploring Kotlin Multiplatform and started with the tutorial over here. Got rekt on the first code I wrote. 😞 IntelliJ (Ultimate) is complaining:

Cannot access class 'io.ktor.util.pipeline.PipelineContext'. Check your module classpath for missing or conflicting dependencies

On these lines:

//file:Server.kt
fun main() {
    embeddedServer(Netty, 9090) {
        routing {
            get("/hello") {
                this // <- does not compile
//                call.respondText("Hello world") // <- does not compile either
            }
        }
    }.start(wait = true)
}

The Gradle build works fine. Seems like it's an issue where the modules have separate dependencies, but IntelliJ doesn't make the distinction (loads everything on to the classpath) which ends up in conflicting dependencies. I've got Java 11 as the Project SDK (but neither 8 nor 17 don't work either), and I've got the latest Kotlin version (currently 221-1.7.10-release-333-IJ5591.52)

Should the following be possible:

public sealed class Foo

public expect class Bar : Foo

When I define the actual class in the same package and module in a platform source set (e.g.

jvmMain

):

public actual class Bar : Foo()

I get an error that says:

Inheritance of sealed classes or interfaces from different module is prohibited

Can someone help with this? https://discuss.kotlinlang.org/t/how-to-reference-kotlin-native-dlls-from-c-code-in-a-windows-uwp-app/25208 I read that the PlanGrid team has been successfully using Kotlin/Native for Windows. Although I haven’t found any samples that cover interop with C# code. Looking for some help on that front…

I'm trying to register a task that depends on

iosArm64Test

but Gradle says that there is no task registered with that name. There are tasks registered for

iosX64Test

and

iosSimulatorArm64Test

. Is that expected? I'm running this on Linux; would that affect the

iosArm64Test

task from getting registered (and if so, why not the others)?

Hello ! Is there a good way to approach KVO (Key-Value Observing) for ObjectiveC/Swift? I've a data class with a mutable field and not sure how to listen changes on this field from iOS.

is there a multiplatform equivalent for an ObjectInputStream?

Hi There's a syncing problem that literally stopped me for a month from upgrading the AGP _(which will most likely fix an IDE false positive error about resolving common dependencies in

androidMain

)_; I'd be really happy to even get a clue of what to touch to make this work. I tried countless ways but nothing worked: https://stackoverflow.com/questions/73006307/gradle-sync-cannot-find-a-variant-matching-build-type-null-and-product-flavo

iosSimulatorArm64Test

and

macosArm64Test

are getting skipped on a Mac m1 with an arm64 jdk. The X64 tasks are working. Anyone know why they would get skipped?

Does anyone know: is it possible to write iOS UIs using KMM + Compose/Multiplatform? Or is it necessary to write Swift code for iOS UIs? Thanks.

Error uploading app built with KMM to the appstore 😞 Has anyone got a fix for this? I've found a few threads about it but not an actual fix. I'm not using pods and just using

embedAndSignAppleFrameworkForXcode

in the build phase. This happens when attempting to upload to the appstore (everything works locally)

The binary file '<http://iosApp.app/Frameworks/shared.framework/shared|iosApp.app/Frameworks/shared.framework/shared>' is not permitted. Your app can't contain standalone executables or libraries, other than a valid CFBundleExecutable of supported bundles.

Hey guys, quick question from someone who used KMM last time two years ago. In a multi-module project, is it better to have a separate app module per client or a single multi-platform module? ( Note that for now I’ll focus on Android only ) I created an

app

module Jvm+Android, but I’ve seen a very old problem on Android Studio, which is the “Unresolved reference” for components from multiplatform modules. It compiles, but it’s impossible to work in this way. Any drawback in having an

app

module that is KMM+Android only?

👋 Anyone here tried fastlane gym to archive a KMP based iOS project to distribute to firebase (or any other platform) through circleCI? The build gets stuck trying to run

embedAndSignAppleFrameworkForXcode

on circleCI. Everything (including the firebase distribution) works fine locally.

Hello, currently using Kotlin

1.7.0

I am getting troubles to get a JS project being served via

jsBrowserDevelopmentRun

My browser is correctly opening my

index.html

file, but not able to fetch the JS (404). The gradle output is the following

> Task :kotlinNodeJsSetup UP-TO-DATE
> Task :kotlinNpmCachesSetup
> Task :kotlinRestoreYarnLock UP-TO-DATE
> Task :kotlinYarnSetup UP-TO-DATE
> Task :adView:jsPackageJson UP-TO-DATE
> Task :adView:jsTestPackageJson UP-TO-DATE
> Task :packageJsonUmbrella UP-TO-DATE
> Task :rootPackageJson UP-TO-DATE
> Task :kotlinNpmInstall UP-TO-DATE
> Task :kotlinStoreYarnLock UP-TO-DATE
> Task :adView:jsGenerateExternalsIntegrated SKIPPED
> Task :adView:compileKotlinJs UP-TO-DATE
> Task :adView:jsProcessResources UP-TO-DATE
> Task :adView:jsMainClasses UP-TO-DATE
> Task :adView:compileDevelopmentExecutableKotlinJs UP-TO-DATE
> Task :adView:jsDevelopmentExecutableCompileSync

> Task :adView:jsBrowserDevelopmentRun
Execution optimizations have been disabled for task ':adView:jsBrowserDevelopmentRun' to ensure correctness due to the following reasons:
  - Gradle detected a problem with the following location: '/Users/tristan/AndroidStudioProjects/Ads/build/js/packages/Ads-adView/kotlin/Ads-adView.js'. Reason: Task ':adView:jsBrowserDevelopmentRun' uses this output of task ':adView:jsDevelopmentExecutableCompileSync' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed. Please refer to <https://docs.gradle.org/7.4.2/userguide/validation_problems.html#implicit_dependency> for more details about this problem.
<i> [webpack-dev-server] Project is running at:
<i> [webpack-dev-server] Loopback: <http://localhost:8080/>
<i> [webpack-dev-server] On Your Network (IPv4): <http://10.0.0.3:8080/>
<i> [webpack-dev-server] On Your Network (IPv6): http://[fe80::1]:8080/
<i> [webpack-dev-server] Content not from webpack is served from '/Users/tristan/AndroidStudioProjects/Ads/adView/build/processedResources/js/main' directory
<i> [webpack-dev-middleware] wait until bundle finished: /

I am also joining the content of

build

as a screenshot. Are there any steps I missed? Thanks a lot for your help.

Hi Folks This might be a stupid question But how do I add the support for Kotlin React JS (Web)? Do I need to add it to both top-level and inside common MPP module as well? Or just adding it to top-level would work?

Hello folks, is there any library to work with USB in multiplatform? 🙂