I get this unhelpful error saying "Plugin request for plugin already on the classpath must not inclu...

# gradle

[thomasnield]

I get this unhelpful error saying "Plugin request for plugin already on the classpath must not include a version". If I remove the version number from the child project I get " Plugin [id: 'org.jetbrains.kotlin.jvm'] was not found in any of the following sources:"
So how do I plugin Kotlin across multiple modules without that version number clashing?

[tddmonkey]

I believe what you should do (and 100% works for us), is declare but not apply the plugin in the root, like this:

plugins {
	id "org.jetbrains.kotlin.jvm" version "1.3.20" apply false
}

Then in your child module just apply plugin: 'kotlin'

[Nikky]

you can also add the plugin child modules by leaving out the version

plugins [
    kotlin("jvm")
}

on the children
its silly, it should realize that it is the same version and just apply it

[thomasnield]

@tddmonkey Is there a way to do that with Kotlin DSL?

[tddmonkey]

There should be, but I use the Groovy one so can’t help. I’ll check if some of our other projects do it

[tddmonkey]

One I dug out from another team:

plugins {
    idea
    kotlin("jvm") version "1.3.11"
}

in subproject

apply {
        plugin("kotlin")
    }

[thomasnield]

Alright thanks, this was very helpful. I did a minimal example here: https://github.com/thomasnield/kotlin_gradle_dsl_multiproject_examples