How do I set the project language level so Gradle import in IntelliJ won't forget it again and again...

# gradle

[Tóth István Zoltán]

How do I set the project language level so Gradle import in IntelliJ won't forget it again and again. I use this now, but it seems to have no effect:

jvm {
        @OptIn(ExperimentalKotlinGradlePluginApi::class)
        compilerOptions.jvmTarget.set(JvmTarget.JVM_11)
    }

[Sam]

kotlin.jvmToolchain(11)

[Sam]

That'll probably force it to use JDK 11 to build too, though. For a gentler approach you could try

kotlin.compilerOptions.jvmTarget.set(JvmTarget.JVM_11)

[Tóth István Zoltán]

Is there a difference between the one you posted second and the way I set it up? I use jvmToolChain as well.

[tapchicoma]

Do you configure it in KMP project?

[Tóth István Zoltán]

Yes.

[Tóth István Zoltán]

2.0.0, IDEA is 2024.1.4

kotlin {

    jvmToolchain(11)

    jvm {
        @OptIn(ExperimentalKotlinGradlePluginApi::class)
        compilerOptions.jvmTarget.set(JvmTarget.JVM_11)
    }

    js(IR) {
        browser()
        binaries.library()
    }

[tapchicoma]

I think this picture should help better to understand:

[tapchicoma]

in your case configuration is not applied to shared source sets (common) and that is why IDEA complains

[Tóth István Zoltán]

The code in question is in jvmMain.

[tapchicoma]

do you have a repro?

[Tóth István Zoltán]

Sure, (main branch is broken atm, in middle of refactoring):

https://github.com/spxbhuhb/adaptive/blob/ca030eeaf3f1c49d56a072beee27d0d7d5bb90a2/adaptive-lib-ktor/build.gradle.kts

[Tóth István Zoltán]

Thank you for the attention.

[Tóth István Zoltán]

This is what appears up again and again. If I set the project language level in idea it goes away, but the language level goes back to 6 after a while (I guess it's the gradle import)

[tapchicoma]

which IDEA version are you using?

[Tóth István Zoltán]

2024.1.4

[Tóth István Zoltán]

Maybe the problem is the composite project, so IDEA cannot figure the level for it? Just guessing.

[tapchicoma]

https://youtrack.jetbrains.com/issue/KTIJ-25134 - could you check 2024.2 release?

[Tóth István Zoltán]

Thanks, I'll mark that issue.

[Aleksei Cherepanov]

Hi, unfortunately, the issue above is not yet cherry-picked to 242, but it should be there soon