In Retrofit we used a custom CallAdapter to wrap every response or error in a NetworkResponse sealed class, instead of relying on exceptions, after reading https://elizarov.medium.com/kotlin-and-exceptions-8062f589d07 by @elizarov. But in Ktor, every example of error handling (including in the documentation https://ktor.io/docs/response-validation.html#expect-success) uses Exceptions instead of Sealed classes. Should we catch the waves and throw ourselves back to exception handling or should we try to implement our own feature to wrap responses in a sealed class?

hey guys, here again. After setting up cocoapods and using the workaround around my build configuration i got the app to build. But now the ios APP is crashing on runtime.

runtime assert: runtime injected twice

I have a multi module project in which some submodules are mpp and some are jvm only (with the classic non-mpp project layout). I noticed that the jvm submodules are not published by

publishJvmPublicationToMavenLocal

. I suspect this behavior is introduced in Kotlin 1.5.0. How do I get the jvm modules to publish, or is turning all submodules into mpp a better option?

Hi! I am trying to share crypto protocols between android app and server side, for that purpose my app has the following structure: Android app -> jvm library (crypto protocols) -> multiplatform library (android and jvm implementations of platform specific cryptoprimitives) When I build the app in the release mode I am facing the following error:

The consumer was configured to find an API of a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'release'. However we cannot choose between the following variants of security:multiplatform:1.0.0:
          - jvmApiElements-published
          - jvmRuntimeElements-published
          - releaseApiElements-published
          - releaseRuntimeElements-published
          - Variant 'releaseApiElements-published' capability security:multiplatform:1.0.0 declares an API of a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'release':
              - Unmatched attributes:
                  - Provides attribute 'com.android.build.api.attributes.VariantAttr' with value 'release' but the consumer didn't ask for it
                  - Provides release status but the consumer didn't ask for it
                  - Provides attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm' but the consumer didn't ask for it

I would expect that Gradle would request for androidJvm platform so the dependency can be resolved. But it states that “consumer did not ask for it”. Does anybody know what is the issue and how to solve it.

hey guys anyone got a solution around https://dl.bintray.com/xorum-io/ReKamp

Hi everyone, has anyone met this problem with firebase-kotlin-sdk by GitLiveApp?

Firebase.firestore.collection("rocketLaunches").add(sampleLaunch)

this line gives this build error:

e: org.jetbrains.kotlin.codegen.CompilationException: Back-end (JVM) Internal error: wrong bytecode generated
  @Lorg/jetbrains/annotations/Nullable;() // invisible
  // annotable parameter count: 1 (visible)
  // annotable parameter count: 1 (invisible)
  @Lorg/jetbrains/annotations/NotNull;() // invisible, parameter 0

Any standard method to sleep in K/MP? (without library - coroutines)

Did somebody find the workaround for this new warning that appears after updating some dependencies in a KMP project? I think maybe it comes from Gradle 7.0 but I’m not sure.

The Kotlin source set androidAndroidTestRelease was configured but not added to any Kotlin compilation. You can add a source set to a target's compilation by connecting it with the compilation's default source set using 'dependsOn'.
See <https://kotlinlang.org/docs/reference/building-mpp-with-gradle.html#connecting-source-sets>

Does anyone know how to properly override Obj-C delegate, where some its

open

functions have the same signature?

Does anyone know how to fix

The feature "multi platform projects" is experimental and should be enabled explicitly

warning in IntelliJ IDEA (Android Studio)? Thanks

is there a nicer way to invoke kotlin data class copy constructor from swift without having to pass in every argument?

Hello all, Is there any plans for a kotlin multiplatform crypto lib? I'm looking for the obvious SHA256, Bech32, Base58 etc... perhaps as part of standard library.

How to add cinterop to a common module like for example linux common module?

val linuxSettings: org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget.() -> Unit = {
        val main by compilations.getting

        main.cinterops.create("x11") { defFile("src/linuxCommonMain/cinterop/cinterop.def") }
    }
    linuxX64(configure = linuxSettings)
    linuxArm64(configure = linuxSettings)
    linuxArm32Hfp(configure = linuxSettings)

Does not work 🤐 The package is inaccessible from

val linuxCommonMain by sourceSets.creating { dependsOn(commonMain) }  <<----
val linuxX64Main by sourceSets.getting { dependsOn(linuxCommonMain) }
val linuxArm64Main by sourceSets.getting { dependsOn(linuxCommonMain) }
val linuxArm32HfpMain by sourceSets.getting { dependsOn(linuxCommonMain) }

I do have

kotlin.mpp.enableGranularSourceSetsMetadata=true
kotlin.native.enableDependencyPropagation=false

in gradle.properites, and platform.posix works, so I guess cinterop should've been considered 🤔 But its not :blob-thinking-upside-down:

Module not found: Error: Can't resolve 'kotlinx-serialization-kotlinx-serialization-core-jsLegacy' in kotlin-dce-dev

someone knows a solution for this?

Hello, World! Any idea why, on a multiplatform project, when using

plugins { kotlin("multiplatform") version "1.5.0"

, I'm getting

The feature "sealed interfaces" is only available since language version 1.5

?

what's the good practice for kotlin multiplatform libraries? let's say my lib only serves purpose for ios targets, but it has some annotations which will be used in

commonMain

module. I want to be a good citizen and not break android or js targets for people using this lib - do I need to provide a no-op js target as well for compatibility (at least for the target that's gonna be used in

commonMain

)? Or is there some magic that should work it out automatically?

Hi, I’m new to kotlin and especially to multiplatform, but I am trying to work on an kmm project and would like to use a D-KMP architecture. The issue is I’m a student that started coding 2 years ago and have mostly worked on web development. We’ve done a little react native app but nothing with native programming. I was hoping someone could help me with understanding how the architecture works (practical not theoretical). And if this would be a goed way to learn kotlin / mobile development / desktop / (web) as multiplatform.

I’ve been at this for the past 2 days upgrading dependencies forcing dependency versions to be compatible with kotlin 1.5.0 but nothing seems to work. What am I missing?

Hello everyone, can anyone explain why do we need to add library separately in androidMain and iosMain and then commonMain, can't we add at once in commonMain and use it for ios and android both

Did someone manage to exclude kotlin native compilations from the maven publish task? We publish the ios classes as an xcframework and the jvm classes to our internal maven repo. However on macs the publish task takes ages because all the klibs are being built that we don't need

Where can i find the KMM open source project?

Did anyone managed to created the KMM project in android studio on Mac? Tried to follow the youtube video exactly, however, the android studio doesnt show me Android Module, iOS breaks… Any sort of help is appreciated

I have a strange issue where the development server for JS doesn't start in --continuous mode. Yesterday it worked, today it doesn't. I am running 1.5.0 and Gradle 7.0.1. Any idea what can be the cause? I also cleaned build and invalidated caches, but to no avail.

Did anyone managed to create the multiplatform project in android studio on Mac? Tried to follow the youtube video exactly, however, the android studio doesnt show me Android Module, iOS breaks… Any sort of help is appreciated

Was the KN memory model changed again in 1.5? I’m getting a lot of freeze errors on iOS after updating. Spent all afternoon debugging it.

Hi all, I'm creating a single iOS Framework from an umbrella multiplatform module which contains 4 modules. The operation takes 4 minutes approximately. Is there any optimization I could try to lower the generation time? Could the increase of the number of submodules within the umbrella module affect positively?

This message was deleted.

Whenever I try to run a build for my KMM module I keeps trying to run tests and just sits there forever. I dont have any tests to run so I dont know what its doing, as you can see from the screen shot the build task was running for 20 mins until I stopped it. Is there a way to not run tests when building?