I updated my KMP project to use koktlin 1.7.10 and...

# multiplatform

[Gillian Buijs]

I updated my KMP project to use koktlin 1.7.10 and everything compiles and works fine. When I however use it as a dependency in another project I get a compiler error: "java.lang.NoSuchMethodError: 'void org.jetbrains.kotlin.cli.common.arguments.K2MetadataCompilerArguments.setUseK2(boolean)". The depending project uses the same kotlin version etc. Anyone encountered anything similar?

[Anton Lakotka [JB]]

Can you elaborate a bit more?
What Kotlin Gradle Plugin version do you use in other project?

[Gillian Buijs]

I tried a few but right now it's: com.android.tools.buildG7.2.1

[Gillian Buijs]

wrapper distribution 7.4-all

[Anton Lakotka [JB]]

But that is Android Gradle Plugin. Can you then create a sample project? Where this can be reproduced?

[Gillian Buijs]

hm that's a bit tricky because the update project is still in develop so can't publish it to public maven yet 😞

[Anton Lakotka [JB]]

But I am asking for small sample, not your full project.

[Anton Lakotka [JB]]

because I would like to reproduce it but I can't without information.

[Gillian Buijs]

yes I understand, thank you

[Gillian Buijs]

gimme a sec, i'll make a gist of the implementing project 🙂

[Gillian Buijs]

these are the build files from the implementing project: https://gist.github.com/buijs-dev/ee6b2ae4df8459c20b322bccf2bcc0aa

[Gillian Buijs]

the platform module is build which throws the exception, there's only a simple HelloWorld class in the commonMain

[Gillian Buijs]

I see now I send the wrong dep when you asked lol, sorry my bad. It's: "org.jetbrains.kotlinkotlin gradle plugin1.7.10"

[Anton Lakotka [JB]]

So both projects have 1.7.10 🤔
it is weird

[Gillian Buijs]

yep!

[Gillian Buijs]

you can check the source project here if you want to have a look: https://github.com/buijs-dev/klutter/tree/develop

[Anton Lakotka [JB]]

But this look like a bug or even regression. I will try to make a sample project based on your gist, but if you can do it as well that would be awesome. Because I'm confused with what is happening.

This error: "java.lang.NoSuchMethodError: 'void org.jetbrains.kotlin.cli.common.arguments.K2MetadataCompilerArguments.setUseK2(boolean)".

looks like Kotlin Gradle Plugin of version 1.7.10 tries to invoke Kotlin Compiler of version way older that 1.7. (like 1.5 or 1.6) And I don't see reasons why it does it.

[Gillian Buijs]

yes

[Gillian Buijs]

I also saw a weird log message about kotlin 1.4

[Gillian Buijs]

I'll check if I can reproduce that

[Anton Lakotka [JB]]

Do you have any buildSrc?

[Gillian Buijs]

no I use lib-build as includeBuild

[Anton Lakotka [JB]]

I'll check if I can reproduce that

Ok. yes, please

[Gillian Buijs]

The 'org.jetbrains.kotlin.platform.*' plugins are deprecated and will no longer be available in Kotlin 1.4.
Please migrate the project to the 'org.jetbrains.kotlin.multiplatform' plugin.
See: https://kotlinlang.org/docs/reference/building-mpp-with-gradle.html

[Gillian Buijs]

org.jetbrains.kotlin.platform is nowhere to be found in this project 😄

[Gillian Buijs]

that log message is casued by line 38 here => https://github.com/buijs-dev/klutter/blob/develop/lib-build/src/main/kotlin/dev/buijs/klutter/KlutterJavaPlugin.kt

[Gillian Buijs]

If I remove it and just apply the kotlin jvm plugin in the module build.gradle files then it builds without the weird log. I'll check if this also fixes the nosuchmethod exception (doubt it)

kotlin("jvm") version "1.7.10"

[Gillian Buijs]

nope nothing changed, same exception

[Gillian Buijs]

okay scratch that, it works now

[Gillian Buijs]

so to recap, the cause was applying this plugin in an included build "org.jetbrains.kotlin.gradle.plugin.KotlinPlatformJvmPlugin::class.java", which worked for the entire project itself, but when depending on the project it threw an exception