Correct way of setting group/version for multi-module project? (failure to build KMM: compileKotlinIosArm64 / compileKotlinIosSimulatorArm64)

wojtek · February 6, 2025, 9:02am

(I decided to extract this from another topic to avoid keeping off-topic there)

Plugin extension not found in currently registered extension names

This will work as long as you only have a root project as then allprojects { ... } is just visual clutter.
But as soon as you have any other project, then for those other projects the extension is not there as the plugin is only applied to the root project.
The documentation of that plugin also states that you should do that only on the root project alone.

Generally using allprojects { ... } or also any other means of doing cross-project configuration or even just model access is highly discouraged bad practice, as it immediately introduces project coupling and disturbs some more sophisticated Gradle features and optimizations. In the case you showed I would move group and version to gradle.properties and the repositories to a dependencyResolutionManagement block in the settings script, then your allprojects { ... } is obsolete.
In other cases a convention plugin would be the way to go, for example implemented as precompiled script lugin, for example in buildSrc or an included build.

Finally managed to get back to it (had to dig more into gradle and do “a little bit” of refactoring of our project ).

Now I have better understanding of how gradle works and your point about allprojects { … } was very helpful.

Now the plugin/extension works quite nicely but I have a question about allprojects {} and setting of group/version. You said it would be best to set it in gradle.properties and it seems reasonable but when I set it like that one of the modules (kotlin multi platform for iOS) fails with “can’t find group”:

> Task :common:service:compileKotlinIosSimulatorArm64 FAILED
Caching disabled for task ':common:service:compileKotlinIosSimulatorArm64' because:
  Build cache is disabled
Task ':common:service:compileKotlinIosSimulatorArm64' is not up-to-date because:
  Task has failed previously.
file or directory '/Users/wojtek/dev/myproject/common/service/src/iosSimulatorArm64Main/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/appleMain/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/nativeMain/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/iosSimulatorArm64Main/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/appleMain/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/nativeMain/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/iosSimulatorArm64Main/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/appleMain/kotlin', not found
file or directory '/Users/wojtek/dev/myproject/common/service/src/nativeMain/kotlin', not found
Starting process 'command '/Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home/bin/java''. Working directory: /Users/wojtek/dev/myproject/common/service Command: /Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home/bin/java -Dfile.separator=/ -Dftp.nonProxyHosts=local|*.local|169.254/16|*.169.254/16 -Dhttp.nonProxyHosts=local|*.local|169.254/16|*.169.254/16 -Djava.awt.headless=true -Djava.class.path=/Users/wojtek/.gradle/wrapper/dists/gradle-8.10.2-bin/a04bxjujx95o3nb99gddekhwo/gradle-8.10.2/lib/gradle-daemon-main-8.10.2.jar -Djava.class.version=61.0 -Djava.home=/Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home -Djava.library.path=/Users/wojtek/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. -Djava.runtime.name=OpenJDK Runtime Environment -Djava.runtime.version=17.0.14+7 -Djava.specification.maintenance.version=1 -Djava.specification.name=Java Platform API Specification -Djava.specification.vendor=Oracle Corporation -Djava.specification.version=17 -Djava.vendor=Eclipse Adoptium -Djava.vendor.url=https://adoptium.net/ -Djava.vendor.url.bug=https://github.com/adoptium/adoptium-support/issues -Djava.vendor.version=Temurin-17.0.14+7 -Djava.version=17.0.14 -Djava.version.date=2025-01-21 -Djava.vm.compressedOopsMode=Zero based -Djava.vm.info=mixed mode, sharing -Djava.vm.name=OpenJDK 64-Bit Server VM -Djava.vm.specification.name=Java Virtual Machine Specification -Djava.vm.specification.vendor=Oracle Corporation -Djava.vm.specification.version=17 -Djava.vm.vendor=Eclipse Adoptium -Djava.vm.version=17.0.14+7 -Djdk.debug=release -Dkotlin.daemon.jvm.options=-Xmx5g -Dlibrary.jansi.path=/Users/wojtek/.gradle/native/jansi/1.18/osx -Dline.separator=
 -Dnative.encoding=UTF-8 -Dorg.gradle.appname=gradlew -Dorg.gradle.daemon=false -Dorg.jetbrains.kotlin.cliMessageRenderer=GradleStyle -Dos.arch=aarch64 -Dos.name=Mac OS X -Dos.version=15.2 -Dpath.separator=: -DsocksNonProxyHosts=local|*.local|169.254/16|*.169.254/16 -Dsun.arch.data.model=64 -Dsun.boot.library.path=/Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home/lib -Dsun.cpu.endian=little -Dsun.io.unicode.encoding=UnicodeBig -Dsun.java.command=org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.10.2 -Dsun.java.launcher=SUN_STANDARD -Dsun.jnu.encoding=UTF-8 -Dsun.management.compiler=HotSpot 64-Bit Tiered Compilers -Duser.home=/Users/wojtek -Duser.name=wojtek -Duser.timezone=Europe/Madrid -Xmx3G -Dfile.encoding=UTF-8 -Djava.io.tmpdir=/var/folders/5p/f8dxkg916dqbrqb9v0lm18sm0000gn/T/ -Duser.country=PL -Duser.language=es -Duser.variant -ea -cp /Users/wojtek/.konan/kotlin-native-prebuilt-macos-aarch64-2.0.21/konan/lib/kotlin-native-compiler-embeddable.jar:/Users/wojtek/.konan/kotlin-native-prebuilt-macos-aarch64-2.0.21/konan/lib/trove4j.jar org.jetbrains.kotlin.cli.utilities.MainKt konanc @/var/folders/5p/f8dxkg916dqbrqb9v0lm18sm0000gn/T/kotlinc-native-args1778648734368371337.lst
Successfully started process 'command '/Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home/bin/java''
Failed to load native library:libjansi.jnilib. The native library file at /Users/wojtek/.gradle/native/jansi/1.18/osx/libjansi.jnilib is not executable, make sure that the directory is mounted on a partition without the noexec flag, or set the jansi.tmpdir system property to point to a proper location.  osinfo: Mac/arm64
java.lang.UnsatisfiedLinkError: /Users/wojtek/.gradle/native/jansi/1.18/osx/libjansi.jnilib: dlopen(/Users/wojtek/.gradle/native/jansi/1.18/osx/libjansi.jnilib, 0x0001): tried: '/Users/wojtek/.gradle/native/jansi/1.18/osx/libjansi.jnilib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/Users/wojtek/.gradle/native/jansi/1.18/osx/libjansi.jnilib' (no such file), '/Users/wojtek/.gradle/native/jansi/1.18/osx/libjansi.jnilib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64'))
e: KLIB resolver: Could not find "org.group.myproject" in [/Users/wojtek/dev/myproject/common/service, /Users/wojtek/.konan/klib, /Users/wojtek/.konan/kotlin-native-prebuilt-macos-aarch64-2.0.21/klib/common, /Users/wojtek/.konan/kotlin-native-prebuilt-macos-aarch64-2.0.21/klib/platform/ios_simulator_arm64]

> Task :common:service:compileKotlinIosArm64 FAILED

If I put group = "org.group.myproject" in every submodule build.gradle.kts then it builds.

Considering that allprojects { ... } is discouraged and setting group/version in gradle.properties results in above error what would be the best way to configure group/version globally?

Vampire · February 8, 2025, 8:27pm

Imho, if it does not work from the properties file this should be reported to somewhere, because that sounds like a bug to me.

The alternative is to set it in a convention plugin that you apply to all projects.
For group and version it just usually is much easier to just do it in the properties file if they are static values.

johnjohndoe · February 10, 2025, 7:29pm

Maybe this project helps as a blueprint: GitHub - prof18/RSS-Parser: A Kotlin Multiplatform library to parse a RSS Feed

Vampire · February 11, 2025, 2:30pm

Probably not a good idea to use that as blueprint, as I see after 2 seconds in its readme and in its own build script the discouraged bad-practice cross-project configuration that you should avoid.

johnjohndoe · February 11, 2025, 10:30pm

Thank you for the clarification. I picked that one because it is successfully published.

Vampire · February 12, 2025, 2:05am

Sure, but the whole purpose of the thread is to avoid cross-project configuration.

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Correct way of setting group/version for multi-module project? (failure to build KMM: compileKotlinIosArm64 / compileKotlinIosSimulatorArm64)

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