I have this plugins block in my build.gradle.kts f...

# gradle

[tylerwilson]

I have this plugins block in my build.gradle.kts for my KMP module:

plugins {
    id("com.android.library")
    kotlin("multiplatform")
    kotlin("native.cocoapods")
    kotlin("plugin.serialization") version "1.4.30"
    id("com.chromaticnoise.multiplatform-swiftpackage") version "2.0.3"
}

which gives me this error in AS:

Error resolving plugin [id: 'org.jetbrains.kotlin.plugin.serialization', version: '1.4.30']
> Plugin request for plugin already on the classpath must not include a version

it works if I remove the version, but then fails when I do the iOS framework build. The serialzation github page shows to include the version. What is the issue here?

[tapchicoma]

is your project public?

[tylerwilson]

I am afraid not.

[tapchicoma]

what is the error when you remove version and build ios?

[tylerwilson]

Showing All Messages
* Where:

Build file '/Users/tylerwilson/Projects/salonbiz-library/build.gradle.kts' line: 13



* What went wrong:

Plugin [id: 'org.jetbrains.kotlin.plugin.serialization', artifact: 'org.jetbrains.kotlin:kotlin-serialization:null'] was not found in any of the following sources:

[tylerwilson]

Which appears to be going through the settings.gradle.kts pluginManagement/resolutionStrategy here:

when (requested.id.id) {
                "kotlin-multiplatform", "org.jetbrains.kotlin.multiplatform", "org.jetbrains.kotlin.native.cocoapods" ->
                    useModule("org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.30")
                "kotlinx-serialization", "org.jetbrains.kotlin.plugin.serialization" ->
                    useModule("org.jetbrains.kotlin:kotlin-serialization:${requested.version}")
            }

[tapchicoma]

if you have such block in settings.gradle.kts - then you don't need to define version in any project build.gradle.kts

[tylerwilson]

But if I don’t, I get that error when building iOS

[tylerwilson]

I guess I could hard-code that value there.

[tapchicoma]

btw have you considered just using pluginManagement in settings?

Something like this (note it is in Groovy):

pluginManagement {
  repositories {
    mavenCentral()
    gradlePluginPortal()
  }

  plugins {
    id 'org.jetbrains.kotlin.jvm' version "1.4.30"
    id 'com.github.johnrengelman.shadow' version '6.1.0'
  }
}

[tylerwilson]

this was mentioned in a previous thread i made, and others made fun of me for having a plugins block in settings 😕. so many ways to do things in gradle..

[Cicero]

plugins {
kotlin(“multiplatform”)
kotlin(“plugin.serialization”)
id(“com.android.library”)
id(“kotlin-android-extensions”)
id(“com.squareup.sqldelight”) version “1.4.2"
}

This is inside of my common gradle

[tylerwilson]

and what is your settings?

[Cicero]

pluginManagement {
repositories {
gradlePluginPortal()
google()
jcenter()
mavenCentral()
}
resolutionStrategy {
eachPlugin {
if (requested.id.namespace == “com.android” || requested.id.name == “kotlin-android-extensions”) {
useModule(“com.android.tools.build: gradle :4.0.1”)
}
}
}
}
rootProject.name = “ChipEn”


include(“:android”)
include(“:common”)

enableFeaturePreview(“GRADLE_METADATA”)

[tapchicoma]

I don't see a problem of defining plugins in settings (if you are not using buildSrc module)

[Cicero]

As soon as it works man

[tylerwilson]

cool, thanks. i removed the version from build.gradle.kts and hard-coded the version in settings.gradle.kts, and that seems to work in both places. would be nice if that could be a var, but that did not work for me either. but it works now, so won’t have to change until 1.4.31. 😉

[Vampire]

Why should someone make fun of you for having a plugins block in pluginManagement in the settings script?
That's exactly the place where you define a default version for the pluign so that it is used in all build scripts where you don't specify a different version explicitly.

[tylerwilson]

Perhaps I overstated it. I think the issue is that there are so many ways of doing things in gradle, and there are so few good canonical examples for some use cases (that I have found).

[tylerwilson]

but it works now, so won’t have to change until 1.4.31. 😉

And then I just saw they released 1.4.31. Funny (?)

[Vampire]

There are usually not too much ways to do one thing.
It always is a question of the exact use-case actually.

[Vampire]

Maybe you are interested in https://github.com/jjohannes/idiomatic-gradle/

[tylerwilson]

thank you, I will read that over. i still do the bare minimum in gradle. i have two apps with two shared libs, one shared to three iOS App too. So I am unsure of the flow and how settings, build, buldSrc all work. Gotta keep reading…

[Vampire]

We are also always here to help if you have questions or doubts on how to do something 🙂
Keep in mind that often it helps if you can knit a small MCVE, especially if you cannot share your project.

[tylerwilson]

Very much appreciated! Thank you.

[Vampire]

Oh, we are on the Kotlin Slack, ...
You can also join the Gradle Community Slack for Gradle related things, there might be more Gradle-cracks around than here sometimes. 😄

[Vampire]

Or of course the Gradle forums