Does kotlin download/use its own version of node, ...

# javascript

[Daniel Rampelt]

Does kotlin download/use its own version of node, and if so, is it possible to change that version? I have an npm dependency that requires node >= 12.17 and my build is failing since it seems to be running with 12.16.1. I use nvm on my computer for other node projects, and the only versions I have installed are 8.16.2, 10.20.1, 12.18.3 (default), and 14.8.0 so I have no idea where where 12.16.1 is coming from

[Vampire]

Do you use Groovy DSL or Kotlin DSL for your build scripts?

[Vampire]

Groovy DSL:

kotlinNodeJs {
    nodeVersion = '12.18.3'
}

Kotlin DSL:

configure<NodeJsRootExtension> {
    nodeVersion = "12.18.3"
}

12.16.1 indeed is the default version used

[Daniel Rampelt]

Thanks! Can you change the node version when targeting the browser as well? I'm getting this error:

Extension of type 'NodeJsRootExtension' does not exist. Currently registered extension types: [ExtraPropertiesExtension, KotlinJsProjectExtension, KotlinTestsRegistry, DefaultArtifactPublicationSet, SourceSetContainer, ReportingExtension, JavaPluginExtension, JavaInstallationRegistry, JavaToolchainService]

[Vampire]

No idea, I just used Kotlin/JS to build a GitHub action

[Vampire]

Hm, are you suer you are doing in the correct project or something similar?
From a quick look at the code and a quick test in changing the sub-target to browser it seems the same extension is present and can be configured.

[Daniel Rampelt]

I think so, I put it right beside my kotlin js browser config - does it need to go somewhere else?

kotlin.js {
    browser {
        // See <https://kotlinlang.org/docs/reference/javascript-dce.html#known-issue-dce-and-ktor>
        dceTask {
            keep("ktor-ktor-io.\$\$importsForInline\$\$.<http://ktor-ktor-io.io.ktor.utils.io|ktor-ktor-io.io.ktor.utils.io>")
        }
    }

    binaries.executable()
}

configure<org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootExtension> {
    nodeVersion = "12.18.3"
}

[Vampire]

No, should be fine I think

[Daniel Rampelt]

Oh configuring it on rootProject instead worked! Thanks for the help 🙂

[Vampire]

Yes, this extension will always only be added to the root project

[Vampire]

check(project == project.rootProject) {
    "NodeJsRootPlugin can be applied only to root project"
}

[Daniel Rampelt]

Gotcha, thanks

[Vampire]

next line adds the extension