Trying to compile for raspberry pi while on macintosh is still giving me a couple of issues, (I thought cross-compilation was possible!)

Target 'native' for platform linux_arm32_hfp is ignored during build on this macos_x64 machine. You can build it with a linux_x64 host.

Hi folks, I'm currently trying to create a UUID on windows and i'm running into some undefined reference issues. `undefined reference to

__imp_UuidCreate'

This method exists in platform.windows. I'm assuming i'm just missing a linker flag, but I'm not sure how to determine what linker flag I need. I have already added

-luuid

. Any thoughts?

Is there a trick to getting the FatFrameworkTask working? Running AS with Kotlin 1.3.31.

build.gradle

is in groovy

unable to resolve class org.jetbrains.kotlin.gradle.tasks.FatFrameworkTask
   @ line 2, column 1.
     import org.jetbrains.kotlin.gradle.tasks.FatFrameworkTask

Is the code coverage functionality described in https://github.com/JetBrains/kotlin-native/blob/master/CODE_COVERAGE.md not yet available in 1.3.31? When I try to run the coverage sample I see

w: Flag is not supported by this version of the compiler: -Xlibrary-to-cover=...

and the llvm commands fail because the

profraw

file is never generated.

Anyone got this problem already?

> Task :linkTestDebugExecutableIosSim
Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_UIDevice", referenced from:
      objc-class-ref in combined.o
ld: symbol(s) not found for architecture x86_64
e: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld invocation reported errors

Occurred after adding some imports for

platform.UIKit.<stuff>

in a file

Apple just announced a new UI toolkit, called "SwiftUI". It's built in Swift apparently. Can I use this from Kotlin/Native?

I think we can't just yet, but given Swift 5 now has a stable ABI (which was probably required for SwiftUI), and the fact that SwiftUI seems to be already designed further than Compose (I didn't hear them mention preview), it's very likely Kotlin/Native interop with Swift will see its priority be increased.

Screams were heard briefly... I hope it's okay... 🤔

Hey! I was playing with the Kotlin/Native to create a CLI app for MacOs and along the way I encountered this issue (CoreLocation package definition missing): https://github.com/JetBrains/kotlin-native/issues/3041 As it was suggested in the issue I’m now defining the cinterop in my

build.gradle.kts

-file as follows:

macosX64 {
        val lunchfinderMain by compilations.creating {
            val coreLocation by cinterops.creating {
                defFile(project.file("CoreLocation.def"))
                packageName("platform.CoreLocation")
            }
        }
    }

The file

CoreLocation.def

is now located in the (default) path

src/nativeInterop/cinterop/CoreLocation.def

When I run the build I get the same error as described in the ticket (the imported

platform.CoreLocation

package not found). Any suggestions on what might be wrong with my Gradle config? Thanks already in advance!

I missed the announcement yesterday, but will SwiftUI be usable from ObjC, and thus from Kotlin/native?

is there a reason that the fatframework task for cocoapods doesn't provide a way to generate a fat framework including x86

I have a question concerning BitCode on iOS. As far as I know, K/N is not able to embed bitcode which does make kotlin/native somewhat usuable for us (currently). However, I was wondering why or if there is a C / obj-c output target which I can just feed in to the Apple LLVM compiler. Somehwat like Kotlin/js which transpiles to JavaScript and is the JIT compiled in the browser? Even bigger brands like UNITY use this way to compile C# on iOS.

Hi! Anyone know if it's possible to, with the cocoapods gradle plugin, define dependencies on pods based on local paths rather than by Pod version? (my specific use case is for flutter where the pod is stored locally in a

$flutterProjectDir/.iOS/Flutter/engine/

dir?

I opened the both of the example projects bundled with the CLion Kotlin/Native plugin (on Mac), “Hello World” and “CSVParser”. Both resulted with unresolved references in the IDE. For example even the

println

is an unresolved reference in the Hello World example. Any suggestions on what would fix the problem?

I cannot get Kotlin native working with the new SwiftUI. The app works fine in the simulator, but if I want to see a preview in Xcode I get this error:

Terminating app due to uncaught exception 'NSGenericException', reason: 'Only one Kotlin framework can be loaded currently'
terminating with uncaught exception of type NSException

Is it possible to make a Swift struct implement a Kotlin interface? For example in Swift:

struct MyStruct : KotlinInterface {
}

And in Kotlin:

interface KotlinInterface {
    ...
}

I tried this but it gives the following error:

Non-class type 'MyStruct' cannot conform to class protocol 'KotlinInterface'

What kind of compilation time optimization can we expect in the future? I’m currently sitting at 7min build for an iOS Framework. I can go down to 3min when building only the simulator architecture, but it’s still kinda long when something does not work and I have to try and do some die and retry to find the issue

Hi. I have

__attribute__((objc_subclassing_restricted))
__attribute__((swift_name("A")))
@interface Lib_babylon_clientA : KotlinBase
- (instancetype)init __attribute__((swift_name("init()"))) __attribute__((objc_designated_initializer));
+ (instancetype)new __attribute__((availability(swift, unavailable, message="use object initializers instead")));
- (void)b __attribute__((swift_name("b()")));
@end;

in .h file of generated .framework file. What could be the reason of

Type 'A' has no member 'b'

Swift compilation error for

A().b()

?

Hi everyone. help me pls. How can I get resources in kotlin-native? I cannot use this example:

UtilsTests::class..getResource("/source.pst")

How can I get classpath?

so, i started a multiplatform project in IDEA, then i wanted to add kotlinx-io. i think i have spent hours trying permutations of dependencies in gradle but the only thing that seems to work is using maven with a jdk project

It will be in

kotlinx-io

. It is just not ready yet.

Hey! I’m currently learning to write Kotlin/Native code that uses Apple framework packages. Most of the cases are clear, but this particular problem troubles me. How to write this piece of code, especially the

extension

part in Kotlin.

lass LocationService: NSObject {
    
    let locationManager: CLLocationManager
    init(locationManager: CLLocationManager = CLLocationManager()) {
    	self.locationManager = locationManager
    	super.init()
    	self.locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters
    	self.locationManager.delegate = self
    }
    func getCurrentLocation() {
    	self.locationManager.requestLocation()
    	self.locationManager.requestWhenInUseAuthorization()
    }
}

extension LocationService: CLLocationManagerDelegate {
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations:[CLLocation]) {
    	guard let location = locations.first else { return }
    	print("The location is: \(location)")
    }
    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
    	print("Error: \(error)")
    }
}

I do know that the original

CLLocationManagerDelegate

protocol is actually interface with a name

CLLocationManagerDelegateProtocol

on the Kotlin/Native side. I tried googling, but did not find any examples on how to approach Swift extensions in Kotlin/Native. Any help would be highly appreciated, thanks!

Is runblocking not available in KN?

Is there support in IntelliJ for executing tests in IDE? They result in "test events not received". Running command line works

Is it possible to specify dependency resolution with C libs at the Gradle build file level (eg have the glinegraph def file depend on the gtk3 def file)?

Hi everyone. I have a problem with a enum, which has own method:

enum class PropertyDataType{
    P_TYP_INTEGER_16() {
        override fun getData(byteArray: ByteArray): Int {
             ...
        }
    }
}

kotlin compile throw exception:

e: Compilation failed: Could not find serialized descriptor for index: -7412938954638445921 com.tullynore.pst.domain.dictionary,PropertyDataType.P_TYP_INTEGER_16,<init>

 * Source files: FolderTests.kt, MessageTests.kt, UtilsTests.kt
 * Compiler version info: Konan: 1.2.1 / Kotlin: 1.3.31
 * Output kind: PROGRAM

e: java.lang.IllegalStateException: Could not find serialized descriptor for index: -7412938954638445921 com.tullynore.pst.domain.dictionary,PropertyDataType.P_TYP_INTEGER_16,<init>

Maybe someone already had such an exception? Who can help me?

I downloaded kotlin-native compiler. And added

bin

folder to PATH. But when try to run

hello.kt

by

kotlinc-native hello.kt

. I get

exception: java.nio.charset.MalformedInputException: Input length = 1
        at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
        at java.io.InputStreamReader.read(InputStreamReader.java:184)
        at java.io.BufferedReader.read1(BufferedReader.java:210)
        at java.io.BufferedReader.read(BufferedReader.java:286)
        at java.io.Reader.read(Reader.java:140)
        at java.util.Properties$LineReader.readLine(Properties.java:434)
        at java.util.Properties.load0(Properties.java:353)
        at java.util.Properties.load(Properties.java:317)
        at org.jetbrains.kotlin.konan.properties.PropertiesKt.loadProperties(Properties.kt:28)
        at org.jetbrains.kotlin.konan.target.Distribution$properties$2.invoke(Distribution.kt:67)
        at org.jetbrains.kotlin.konan.target.Distribution$properties$2.invoke(Distribution.kt:24)
        at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
        at org.jetbrains.kotlin.konan.target.Distribution.getProperties(Distribution.kt)
        at org.jetbrains.kotlin.konan.target.PlatformManager.<init>(Platform.kt:36)
        at org.jetbrains.kotlin.konan.target.PlatformManager.<init>(Platform.kt:32)
        at org.jetbrains.kotlin.backend.konan.KonanConfig.<init>(KonanConfig.kt:36)
        at org.jetbrains.kotlin.cli.bc.K2Native.doExecute(K2Native.kt:59)
        at org.jetbrains.kotlin.cli.bc.K2Native.doExecute(K2Native.kt:35)
        at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:84)
        at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:42)
        at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:103)
        at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:81)
        at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:49)
        at org.jetbrains.kotlin.cli.common.CLITool$Companion.doMainNoExit(CLITool.kt:214)
        at org.jetbrains.kotlin.cli.common.CLITool$Companion.doMain(CLITool.kt:206)
        at org.jetbrains.kotlin.cli.bc.K2Native$Companion$main$1.invoke(K2Native.kt:217)
        at org.jetbrains.kotlin.cli.bc.K2Native$Companion$main$1.invoke(K2Native.kt:208)
        at org.jetbrains.kotlin.konan.util.UtilKt.profileIf(Util.kt:39)
        at org.jetbrains.kotlin.konan.util.UtilKt.profile(Util.kt:33)
        at org.jetbrains.kotlin.cli.bc.K2Native$Companion.main(K2Native.kt:210)
        at org.jetbrains.kotlin.cli.bc.K2NativeKt.main(K2Native.kt:296)
        at org.jetbrains.kotlin.cli.utilities.MainKt.main(main.kt:16)

And this is my hello.kt file

fun main(){
        println("hello native")
}

Hello guys, I am trying to use a C-library in my Kotlin based app. I have gone through the official documentation, but I didn't find a resource that explains how to add a C-library as dependency to an Android Project and can be used in the SharedCode Kotlin module! Any help appreciated.

I've got a question on actually porting C code into Kotlin code.

struct nk_context ctx;
nk_init_fixed(&ctx, calloc(1, MAX_MEMORY), MAX_MEMORY, &font);

This is some C code for the library I'm trying to use (Nuklear). How would I convert that to Kotlin interop code?