Hi all. I have a highlighting bug in my project where any references in .kt files in my main module to classes in other modules are marked in red.

(Cannot access class...)

The project compiles and runs as expected and Java files are not affected. It started with the kotlin plugin version 1.4 and it's still an issue with 1.4.20-M1. Using an older plugin, 1.3.72 fixes the issue, but the project is on Kotlin 1.4 so that's not a good workaround. The project is a kotlin multiplatform project so I suspect that's the issue Before I raise an issue with Jetbrains I want to understand the problem better, has anyone encountered this?

I’ve been trying to configure sqldelight in my project since yesterday, but without any success so far

plugins {
    kotlin("multiplatform") version "1.4.10"
    id("com.squareup.sqldelight")
}

buildscript {
    repositories {
        jcenter()
    }

    dependencies {
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.0")
        classpath ("com.squareup.sqldelight:gradle-plugin:1.4.3")
    }
}

sqldelight {
    database("MyDatabase") {
        packageName = "com.my.package.name.sqldelight"
    }
}

I also created a

News.sq

file in

src/commonMain/sqldelight/com/my/package/name/sqldelight

Running

gradlew build

succeed but I can’t see that

MyDatabase

class is generated. Am I suppose to do anything more?

I've added atomicfu to project like this in commonMain

compile "org.jetbrains.kotlinx:atomicfu-common:0.14.4"

now my build on ios fails, any suggestion

Execution failed for task ':shared:compileKotlinIos'.
 > Could not resolve all files for configuration ':shared:iosCompileKlibraries'.
    > Could not resolve org.jetbrains.kotlinx:atomicfu-common:0.14.4.
      Required by:
          project :shared
       > No matching variant of org.jetbrains.kotlinx:atomicfu-common:0.14.4 was found. The consumer was configured to find a usage of 'kotlin-api' of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'native', attribute 'org.jetbrains.kotlin.native.target' with value 'ios_x64' but:
           - Variant 'metadata-api' capability org.jetbrains.kotlinx:atomicfu-common:0.14.4:
               - 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 usage of 'kotlin-api' of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'native'
               - Other compatible attribute:
                   - Doesn't say anything about org.jetbrains.kotlin.native.target (required 'ios_x64')
           - Variant 'metadata-commonMainMetadataElements' capability org.jetbrains.kotlinx:atomicfu-common:0.14.4 declares a usage of 'kotlin-api' of a component:
...

@dsavvinov Really nice talk. I had to listen to it with a slight delay due to lectures, but it was really helpful.

Hello, I have a problem with linkDebugFrameworkIosX64 gradle task. linkDebugFrameworkIosArm64 and linkReleaseFrameworkIosX64 work without any problems. But on x64 debug I have that error. How can I fix it?

Is there anyone experienced with apollo graphql multiplatform library? It is working fine on android but on iOS we got empty body on our backend.

How do I declare a weak variable with the expect/actual pattern that also becomes a weak variable when used in Swift? I’ve tried

actual var listener: WeakReference<T>? = null

and updated my calls to

listener?.get()?.method()

. But once I use my shared code in Swift, the

listener

variable is not the expected

weak var listener: T

but a wrapped

KotlinWeakReference

. If I use this, it is the same as without – the value assigned to listener, a UIViewController, does not get deallocated once all the references in the concrete implementation are gone (the view controller gets dismissed and should not receive further messages from the listener)

Hello, I am trying to build a multi-platform client that retries the request automatically when the token expired and 401 is returned from the server. For that I am using a sample code by moko-network. The refresh token api is being triggered but when it retries the  request using 

request

 , I never get a 

result

 as if some “deadlock” occurred.

val requestBuilder = HttpRequestBuilder().takeFrom(context.request)
val result: HttpResponse = context.client!!.request(requestBuilder)

Any idea? Anyone implemented a RefreshToken feature that works with latest Ktor?

Hi. I am fairly new to Multiplatform. Sounds quite trivial question but is it possible to run unit tests from IDE for common module? Created an empty project and when clicking 'Run' button 'Nothing here' pops up.

I recently upgraded to kotlin 1.4.1 and it seems that the adding any pod file via the native.cocoapods plugin is causing the the gradle task

linkDebugFrameworkIosSim

to throw an error

Could not find <project-name> in …

I’ve attached the relevant trace for completeness. How do I resolve this or am I missing something?

Hi All! I have recently updated to kotlin 1.4.0 and when trying to execute the compileKotlinIos task I get "java.io.FileNotFoundException: /../build/classes/kotlin/ios/main/presentation/manifest (No such file or directory)"

Can I use two different JVM targets with different JDK versions? Fox example - spark and android require JDK8 but for the jvm application, we wont to use the last JVK.

@jetbrains

Could we have kotlin version added to gradle metadata attributes, please? This would be useful in determining library compatibilities. Also would play a key role when consuming it and deciding which schema/attributes to expect, since those seem to be quite volatile between versions

I’m getting into multi-project builds, and I noticed jvmTest runs jvmTest for all subprojects too. is there a way to make it only run tests from the root project?

Hi! I am trying to port a project to Kotlin Multiplatform. Due to some issues with the serialization library, I am unable move to latest Kotlin version. Where can I find the documentation of older versions ? I was unable to find it on the kotlinlang wesite.

What are people using for multiplatform mobile (android and iOS) logging? I've found Napier but looking for something else. Napier doesn't even log stack traces on iOS.

Is there a multiplatform identity hashmap? Or any way to get an internal unique ID for an object in JS? On JVM there is

System.identityHashCode(…)

and on native there is

Any?.identityHashCode()

.

in my android module i depend on my multiplatform module, but I am getting an error saying

Duplicate JVM class name

Am I depending on the multiplatform module incorrectly? i am doing

implementation(project(":mobile"))

Hi all 🙂 We have an existing native iOS/Android project where we are trying to create a shared KMM library create more consistent code between the platforms and reuse code. What we would like to retain is the way we build the projects (that means using Xcode for iOS). Does anyone know if there's some official documentation on how to integrate kotlin KMM module well with an existing project or have managed to do it somehow? So far it seems for iOS the best working solution for us have been to use the Cocoapods integration, however we are having some issues there since we manage multiple configurations in our iOS project (not just Develop and Release, which is the only configurations supported by the plugin by default).

Trying to publish library artefacts to private repo. Got a following error

> Failed to notify project evaluation listener.
   > Kotlin target 'android' tried to set up publishing for Android build variants that are not library variants or do not exist:
     * release
     Check the 'publishLibraryVariants' property, it should point to existing Android library variants. Publishing of application and test variants is not supported.
   > Kotlin target 'android' tried to set up publishing for Android build variants that are not library variants or do not exist:
     * release
     Check the 'publishLibraryVariants' property, it should point to existing Android library variants. Publishing of application and test variants is not supported.

I've created the example KMM Hello World app described at Create your first multiplatform application. Next I created a new KMM Module via AndroidStudio's File->New->New Module...->KMM Shared Module, and named it kmmsharedmodule. I edited that to return the date using system libraries for each platform (referencing code snippets from Getting started with Kotlin Multiplatform.) Exactly how do I edit my build.gradle files to make the overall app dependent on kmmsharedmodule? I'm hoping it can be configured to automatically generate both Android and iOS libraries for this module, but I haven't found an example describing this specifically.

Hey all, I think I'm having some troubles with my maven snapshot publishing. I'm using three different machines to publish to various mac linux and windows builds, each of those creates their own common entry, but the problem is, modules file in those common entries contain links only to artifacts from that machine, i.e. mac: https://oss.sonatype.org/content/repositories/snapshots/com/ionspin/kotlin/multiplatform-crypto-libsodium-bindings/0.1.1-SNAPSHOT/multiplatform-crypto-libsodium-bindings-0.1.1-20201019.205459-4.module linux: https://oss.sonatype.org/content/repositories/snapshots/com/ionspin/kotlin/multiplatform-crypto-libsodium-bindings/0.1.1-SNAPSHOT/multiplatform-crypto-libsodium-bindings-0.1.1-20201019.202701-1.module So the problem is as follows: If the last machine to publish to snapshot with the same version was

mac

, trying to resolve the dependancy for a sample project on

linux

machine will fail because it's missing links to artifacts in latest module:

No matching variant of com.ionspin.kotlin:multiplatform-crypto-libsodium-bindings:0.1.1-SNAPSHOT:20201019.205459-4 was found. The consumer was configured to find an API 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 'iosArm32-api' capability com.ionspin.kotlin:multiplatform-crypto-libsodium-bindings:0.1.1-SNAPSHOT:
              - Incompatible because this component declares a usage of 'kotlin-api' of a component, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'native' and the consumer needed an API 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')

And vice versa. I haven't faced this behavior before, so is it something new, or am I doing something stupid because I'm tired?

I'm trying to write tests for a KMP project, I get the following error when trying to run the Android test, what could be wrong?

unable to enhance gradle daemon classloader with idea_rt.jar
org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$ArtifactResolveException: Could not resolve all files for configuration ':shared:debugUnitTestRuntimeClasspath'.
	...
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.gradle.internal.resolve.ModuleVersionNotFoundException: Could not find org.junit.jupiter:junit-jupiter:.
Required by:
    project :shared

I use the cocoapods integration with a KMM project with a

Firebase/Auth

dependency. I keep getting the dreaded code 65 error:

Executing of 'xcodebuild -project Pods.xcodeproj -scheme Firebase -sdk iphonesimulator -configuration Release' failed with code 65 and message

. Anyone have this working?

My k/n build importing

kotlin.native.concurrent.AtomicReference

in

commonMain

is failing when I build it on my Linux box with

Unresolved reference: AtomicReference

, but working on my Mac. According to the docs,

AtomicReference

is available in

Common

.

Hi, is

suspendCoroutine

broken in

1.3.9-native-mt-2

? I'm getting an error like on iOS:

Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlin.coroutines.SafeContinuation@368d808
<unknown>:0: error: -[Example_iOS_Tests.SharedModuleTests testSharedModule] : Unexpected Failure
/Users/jenkins4/workspace/q-lib-branch_feature_screensArch/Example/Example-iOS/Example-Tests/SharedModuleTests.swift:113: error: -[Example_iOS_Tests.SharedModuleTests testSharedModule] : Failed due to unwaited expectation 'Test Shared Module'.
Test Case '-[Example_iOS_Tests.SharedModuleTests testSharedModule]' failed (0.190 seconds).

Is it possible to extend the test libraries from one project into another project's test libraries? I'm creating a multiproject multiplatform project and I'm using a line like this:

implementation(project(":kgraphql"))

within jvmMain, but it's not possible to get the jvmTest from that project to it's side project. Are there any solutions for this except just copy and paste it?

Hi. Changed ios platform declaration from

iosX64("ios")

to

ios()

and now need to create modules iosArm64Main and iosX64Main. Is there any way to point both targets to iosMain sourceset only? Does it mean that now I would need duplicate

actual

implementation for each target?

so I have run into an issue where I have a default value provided for a method argument on an expect class, and on iOS, this value is received correctly in the actual implementation, but on Android it's null. has anyone seen this before?