[Multiplatform] Issues publishing when included into multi-target project

[Micha-ohne-el]

Hi there!

I'm having issues publishing my library (to mavenLocal) when I add kotlinx-datetime to my dependencies. I was hoping you could have a look. I have prepared a minimal sample project, with which I can replicate the problem: Please see here. It's an IntelliJ IDEA project, I hope that is alright.

When I execute the build task publishToMavenLocal, I consistently get an error. The error only occurs when more than one build target (such as jvm, linuxX64 or js) is specified in my build.gradle.kts. The error occurs at the build step compileCommonMainKotlinMetadata and it reads the following:

java.lang.IllegalStateException: e: Could not find "/home/micha/Projects/kotlinx-datetime-test/build/kotlinSourceSetMetadata/commonMain/org.jetbrains.kotlinx-kotlinx-datetime/org.jetbrains.kotlinx-kotlinx-datetime-commonMain.klib" in [/home/micha/.local/share/kotlin/daemon]
	at org.jetbrains.kotlin.library.SingleFileResolveKt$resolveSingleFileKlib$1.fatal(SingleFileResolve.kt:21)
	at org.jetbrains.kotlin.library.KotlinLibrarySearchPathResolver.resolve(SearchPathResolver.kt:175)
	at org.jetbrains.kotlin.library.KotlinLibrarySearchPathResolver.resolve(SearchPathResolver.kt:181)
	at org.jetbrains.kotlin.library.CompilerSingleFileKlibResolveStrategy.resolve(SearchPathResolver.kt:302)
	at org.jetbrains.kotlin.library.SingleFileResolveKt.resolveSingleFileKlib(SingleFileResolve.kt:24)
	at org.jetbrains.kotlin.library.SingleFileResolveKt.resolveSingleFileKlib$default(SingleFileResolve.kt:15)
	at org.jetbrains.kotlin.cli.metadata.KlibMetadataDependencyContainer.<init>(K2MetadataKlibSerializer.kt:122)
	at org.jetbrains.kotlin.cli.metadata.K2MetadataKlibSerializer$serialize$analyzer$1.invoke(K2MetadataKlibSerializer.kt:54)
	at org.jetbrains.kotlin.cli.metadata.K2MetadataKlibSerializer$serialize$analyzer$1.invoke(K2MetadataKlibSerializer.kt:48)
	at org.jetbrains.kotlin.cli.metadata.CommonAnalysisKt.runCommonAnalysisForSerialization(CommonAnalysis.kt:42)
	at org.jetbrains.kotlin.cli.metadata.K2MetadataKlibSerializer.serialize(K2MetadataKlibSerializer.kt:53)
	at org.jetbrains.kotlin.cli.metadata.K2MetadataCompiler.doExecute(K2MetadataCompiler.kt:117)
	at org.jetbrains.kotlin.cli.metadata.K2MetadataCompiler.doExecute(K2MetadataCompiler.kt:40)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:91)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:43)
	at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:93)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1623)
	at jdk.internal.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:360)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:712)
	at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:587)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:705)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:704)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)

As you will (hopefully) see in my sample project, removing all but one build target fixes the issue. It does not matter which is removed and which is kept. Additionally, going back to version 0.3.3 also fixes the issue.

To clarify: I am able to build and run all of my code, just not publish it.

I'm not sure what the cause of this error could be and would really appreciate some guidance here. I'm not particularly knowledgeable when it comes to any of this, so forgive me if I have mixed up some terms.

Thanks for your time!