Hi all, I published, to my maven local, the lates...

# ktor

[Didier Villevalois]

Hi all,

I published, to my maven local, the latest main branch in order to have 2.0.0-SNAPSHOT with Kotlin 1.6.0 (and a particular PR). In a project of mine where I declare ktor-io and ktor-network as implementation dependencies for my common source set, I now have an error "Could not resolve io.ktorktor io2.0.0-SNAPSHOT" that I don't understand. I found lots of similar errors in the Slack search but none hints me at what the problem is. This was working fine when I was using ktor 1.6.4-SNAPSHOT and Kotlin 1.5.31.

(Gradle configuration and full error in thread.)

Does anyone know what can be the problem ? Thanks in advance for you help.

[Didier Villevalois]

The gradle.build.kts file:

val kotlinxCoroutinesVersion: String by project
val ktorVersion: String by project

val mingwPath = File(System.getenv("MINGW64_DIR") ?: "C:/msys64/mingw64")

kotlin {
    jvm {
        compilations.all {
            kotlinOptions.jvmTarget = "1.8"
        }
        testRuns["test"].executionTask.configure {
            useJUnitPlatform()
        }
    }

    val hostOs = System.getProperty("os.name")

    val hostTarget = when {
        hostOs == "Mac OS X" -> macosX64("native")
        hostOs == "Linux" -> linuxX64("native") {
            binaries.sharedLib()
        }
        hostOs.startsWith("Windows") -> mingwX64("native")
        else -> throw GradleException("Host OS is not supported in Kotlin/Native.")
    }

    sourceSets {
        all {
            languageSettings.optIn("kotlin.RequiresOptIn")
            languageSettings.optIn("kotlinx.coroutines.ExperimentalCoroutinesApi")
        }

        val commonMain by getting {
            dependencies {
                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlinxCoroutinesVersion")
                implementation("io.ktor:ktor-io:$ktorVersion")
                implementation("io.ktor:ktor-network:$ktorVersion")
                implementation(project(":ktzmq-core"))
            }
        }
        val commonTest by getting {
            dependencies {
                implementation(kotlin("test"))
            }
        }

        val jvmMain by getting

        val nativeMain by getting
    }
}

[Didier Villevalois]

The error is too long for Slack, here it is in Gist: https://gist.github.com/ptitjes/cdc864dc28597c001f2419619fb98ca3
An extract:

> Error while evaluating property 'filteredArgumentsMap' of task ':ktzmq-cio:compileKotlinMetadata'
   > Could not resolve all files for configuration ':ktzmq-cio:metadataCompileClasspath'.
      > Could not resolve io.ktor:ktor-io:2.0.0-SNAPSHOT.
        Required by:
            project :ktzmq-cio
         > The consumer was configured to find a usage of 'kotlin-api' of a library, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'common'. However we cannot choose between the following variants of io.ktor:ktor-io:2.0.0-SNAPSHOT:
             - iosArm32ApiElements-published
             - iosArm64ApiElements-published
             - iosSimulatorArm64ApiElements-published
             - iosX64ApiElements-published
             - jsIrApiElements-published
             - jsLegacyApiElements-published
             - jvmApiElements-published
             - jvmRuntimeElements-published
             - linuxX64ApiElements-published
             - macosArm64ApiElements-published
             - macosX64ApiElements-published
             - mingwX64ApiElements-published
             - tvosArm64ApiElements-published
             - tvosSimulatorArm64ApiElements-published
             - tvosX64ApiElements-published
             - watchosArm32ApiElements-published
             - watchosArm64ApiElements-published
             - watchosSimulatorArm64ApiElements-published
             - watchosX64ApiElements-published
             - watchosX86ApiElements-published
           All of them match the consumer attributes:
             - Variant 'iosArm32ApiElements-published' capability io.ktor:ktor-io:2.0.0-SNAPSHOT declares a usage of 'kotlin-api' of a library, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'native':
                 - Unmatched attributes:
                     - Provides integration status but the consumer didn't ask for it
                     - Provides attribute 'org.jetbrains.kotlin.native.target' with value 'ios_arm32' but the consumer didn't ask for it
             - Variant 'iosArm64ApiElements-published' capability io.ktor:ktor-io:2.0.0-SNAPSHOT declares a usage of 'kotlin-api' of a library, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'native':
                 - Unmatched attributes:
                     - Provides integration status but the consumer didn't ask for it
                     - Provides attribute 'org.jetbrains.kotlin.native.target' with value 'ios_arm64' but the consumer didn't ask for it
[...+

[Aleksei Tirman [JB]]

Are you able to reproduce it with an EAP build, like 2.0.0-eap-267 from https://maven.pkg.jetbrains.space/public/p/ktor/eap repository?

[Didier Villevalois]

I can't know because if I try to use 2.0.0-eap-267 then my build fails with missing symbols (from the PR I am trying to test). It looks like publishToMavenLocal does not publish all the artifacts.

[Aleksei Tirman [JB]]

It should work now (fixed by https://github.com/ktorio/ktor/pull/2698). Please remove local maven artifacts of version 2.0.0-SNAPSHOT, make a clean build and publish to the maven local.

[Didier Villevalois]

Oh great! Thanks @Aleksei Tirman [JB] for the heads up. I'll try again tomorow. Cheers.

[Aleksei Tirman [JB]]

And don't forget to pull the main branch :)

[Didier Villevalois]

@Aleksei Tirman [JB] well, now it seems that all my references to Ktor fail in compileKotlinMetada. After a clean of my project (this sub-project targets JVM and Native), the build phases applied in order are:
• compileCommonMainKotlinMetadata ✅
• compileKotlinLinuxX64 ✅
• compileKotlinJVM ✅
• linkDebugSharedLinuxX64 ✅
• linkReleaseSharedLinuxX64 ✅
• compileKotlinMetadata ❌
I have errors like:

e: /home/didier/Code/Didier/ktzmq/ktzmq-cio/src/commonMain/kotlin/org/zeromq/CIOInstance.kt: (3, 8): Unresolved reference: io
e: /home/didier/Code/Didier/ktzmq/ktzmq-cio/src/commonMain/kotlin/org/zeromq/CIOInstance.kt: (4, 8): Unresolved reference: io
e: /home/didier/Code/Didier/ktzmq/ktzmq-cio/src/commonMain/kotlin/org/zeromq/CIOInstance.kt: (16, 12): Unresolved reference: InternalAPI
e: /home/didier/Code/Didier/ktzmq/ktzmq-cio/src/commonMain/kotlin/org/zeromq/CIOInstance.kt: (16, 12): An annotation argument must be a compile-time constant
e: /home/didier/Code/Didier/ktzmq/ktzmq-cio/src/commonMain/kotlin/org/zeromq/CIOInstance.kt: (17, 35): Unresolved reference: SelectorManager
[...]

I can't figure out what is the problem nor can I find an related issue in YouTrack...

[Aleksei Tirman [JB]]

I can only suggest cleaning Gradle caches (remove ~/.m2 and ~/.gradle directories completely)

[Didier Villevalois]

So I `./gradlew clean`ed both Ktor and my project, then removed ~/.m2 and ~/.gradle, then ./gradlew publishToMavenLocal in Ktor, and then ./gradlew assemble in my project. I unfortunately obtain the exact same errors.