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kotlinlang

x - posting here because I think it is relevant.

Is any one here using gradle composite build as dependency substitutors for kotlin multiplatform projects with success? Any workaround is welcomed

It came up a bit in <https://kotlinlang.slack.com/archives/C19FD9681/p1655385157485069|this thread> and I think a couple of workarounds may have been mentioned in the linked tickets

Are you concerned about Gradle build or IDE support?

We have a MPP composite build that's working well <http://We%20do%20have%20a%20working%20MPP%20composite%20build%20that's%20using%20Kotlin%201.6.1%20https://github.com/apollographql/apollo-kotlin/tree/main/tests|there>

I would love both (IDE and Gradle) to be honest. but I'll take what I can get

IDE supports is hit&amp;miss but Gradle works fine in my experience (<https://youtrack.jetbrains.com/issue/KT-52172|even if it's not 100% supported apparently>). Do you have a specific error when building?

<@U79JY5TL3> I am getting resolution errors
```&gt; Task :authenticator-core:compileCommonMainKotlinMetadata FAILED
e: /media/andylamax/Auxilliary/Workspace/PiCortex/home/authenticator/core/src/commonMain/kotlin/authenticator/ProfileServiceCore.kt: (3, 17): Unresolved reference: RequestBody
. . .```
Funny thing is the following tasks all do compile successfully
• compileKotlinMetadata
• compileKotlinJvm
• compileKotlinJs

I've seen this one. I'm on mobile right now but if you search "compileCommonMainMetadata" on this slack you should find something

Tldr: you can disable the task and you'll be fine

<@U79JY5TL3>, thanks a lot. Just disabling that task, seemed to work. Next, how do I get IDEA to play well now? Any hints/clues?

If you looking at <https://github.com/apollographql/apollo-kotlin/tree/main/tests|https://github.com/apollographql/apollo-kotlin/tree/main/tests> we do some hacks based on "idea.sync" property to use different versions of Kotlin

Look for constructs like
```System.getProperty("idea.sync.active") == null```

The idea is to use 1.6.10 during IDEA sync and a newer version at build time

Its a big repo. How do I make idea use kotlin 1.6.10 after checking ?
```System.getProperty("idea.sync.active") == null```
do I apply a different kotlin plugin?

We do it there: <https://github.com/apollographql/apollo-kotlin/blob/d1ebde581e7a2c31116f4b435e847b6e1124d5c0/build-logic/build.gradle.kts#L31>

But as you said, there's a lot of details. Especially, if you're using AGP you might have issues no matter what

I currently have it like this

```plugins {
    if (System.getProperty("idea.sync.active") == null) {
        println("Idea is not syncing")
        kotlin("multiplatform") version "1.7.0" apply false
    } else {
        println("Idea is syncing")
        kotlin("multiplatform") version "1.6.10" apply false
    }
}```
Tried in IDEA and AS to no avail. I realize appollo is doing the checking in a build-logic module. Is that the rout I should take as well?? or same principles should apply?

I think it doesn't have to be in build-logic but since this is all a big hack, it's hard to tell :-/