Hi folks, I’m facing the following problem in my compose multiplatform project: When using `kotlin....

# compose-ios

[Elad Finish]

Hi folks, I’m facing the following problem in my compose multiplatform project:

When using
kotlin.version=1.8.20
compose.version=1.4.1
I can run iOS app, but on running Android app, the build fails:

> Task :androidApp:compileDevDebugKotlin FAILED
e: This version (1.4.1) of the Compose Compiler requires Kotlin version 1.8.0 but you appear to be using Kotlin version 1.8.20 which is not known to be compatible. Please consult the Compose-Kotlin compatibility map located at <https://developer.android.com/jetpack/androidx/releases/compose-kotlin> to choose a compatible version pair (or `suppressKotlinVersionCompatibilityCheck` but don't say I didn't warn you!).

So I changed Kotlin version to 1.8.0 and it solved the issue for Android, but then iOS has an issue: (full details in comment)

> Task :composables:linkPodDebugFrameworkIosSimulatorArm64 FAILED
e: Module "org.jetbrains.compose.ui:ui (org.jetbrains.compose.ui:ui-uikitsimarm64)" has a reference to symbol platform.UIKit/UIView.setFrame|-3257539694696545905[100]. Neither the module itself nor its dependencies contain such declaration.

This could happen if the required dependency is missing in the project. Or if there is a dependency of "org.jetbrains.compose.ui:ui (org.jetbrains.compose.ui:ui-uikitsimarm64)" that has a different version in the project than the version that "org.jetbrains.compose.ui:ui (org.jetbrains.compose.ui:ui-uikitsimarm64): 1.4.1" was initially compiled with. Please check that the project configuration is correct and has consistent versions of all required dependencies.

Any help would be appreciated!

[Elad Finish]

https://pastebin.com/raw/mD5CPQ2X

[John O'Reilly]

you should be able to get around this (for first issue you mentioned anyway) by using kotlinCompilerPluginArgs setting....see example in following file

https://github.com/joreilly/PeopleInSpace/blob/main/compose-ios/build.gradle.kts

[John O'Reilly]

ah, this was error for android app build....in that case you might also try updating compose compiler version for that as per https://developer.android.com/jetpack/androidx/releases/compose-kotlin

[John O'Reilly]

so 1.4.5 in for Kotlin 1.8.20

[Elad Finish]

thanks @John O'Reilly
still have an issue (both in Android and iOS builds)

* Exception is:
org.gradle.api.plugins.UnknownPluginException: Plugin [id: 'org.jetbrains.compose', version: '1.4.5'] was not found in any of the following sources:

- Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
- Plugin Repositories (could not resolve plugin artifact 'org.jetbrains.compose:org.jetbrains.compose.gradle.plugin:1.4.5')
  Searched in the following repositories:
    Gradle Central Plugin Repository
    maven(<https://maven.pkg.jetbrains.space/public/p/compose/dev>)
    Google

[John O'Reilly]

so, the 1.4.5 version I mentioned above was the androidx one whereas it's complaining above about the jetbrains one....it's quite messy but depending on combination of versions you can use same for both or specific different versions for Android and for Compose Multiplatform ....there's also some more info on how to set this up (for Compose Multiplatform) in https://github.com/JetBrains/compose-multiplatform/blob/master/VERSIONING.md

[John O'Reilly]

which module is above complaining about?

[John O'Reilly]

also, can refer to https://github.com/JetBrains/compose-multiplatform/blob/master/gradle-plugins/comp[…]in/kotlin/org/jetbrains/compose/ComposeCompilerCompatibility.kt

[John O'Reilly]

hmm, this shows 1.4.5 for 1.8.20 as well

[John O'Reilly]

and I do see 1.4.5 in https://maven.pkg.jetbrains.space/public/p/compose/dev/org/jetbrains/compose/compiler/compiler/

[John O'Reilly]

oh, I think you were setting compose version to 1.4.5 above?

[Elad Finish]

which module is above complaining about?

Build file '/Users/eladfinish/AndroidStudioProjects/elad/BibleContestMobileApp/composables/build.gradle.kts' line: 1

Plugin [id: 'org.jetbrains.compose', version: '1.4.5'] was not found in any of the following sources:

[Elad Finish]

yes

[John O'Reilly]

as opposed to compose compiler version

[John O'Reilly]

I probably didn't make that very clear above

[John O'Reilly]

so basically the 3 things that generally need to line up right now are (1) Kotlin version, (2) Compose version, and (3) Compose Compiler version

[Elad Finish]

checking.
I don't want to downgrade Compose version, as the old versions require every Composable function to be internal, to work in iOS.

[John O'Reilly]

did you try something like following in your compose ios module?

compose {
    kotlinCompilerPluginArgs.add("suppressKotlinVersionCompatibilityCheck=1.8.20")
}

[John O'Reilly]

(while still using Compose Multiplatform 1.4.1)

[Elad Finish]

I tried it in android module

kotlinOptions {
    jvmTarget = "1.8"
    freeCompilerArgs += listOf(
        "-Xallow-jvm-ir-dependencies",
        "-P",
        "plugin:androidx.compose.compiler.plugins.kotlin:suppressKotlinVersionCompatibilityCheck=1.8.20",
    )
}

trying on ios

[John O'Reilly]

I think you'll need to use that top level compose section like I have above for your ios module (as per https://github.com/JetBrains/compose-multiplatform/blob/master/VERSIONING.md)

[John O'Reilly]

compose multiplatform is a different setup to android for this

[Elad Finish]

I've just noticed that my ios module doesn't have build.gradle.kts file
and I did manage to run the app on ios simulator

[John O'Reilly]

ok, that looks like XCode project.....so you don't have a specific "compose ios" module?

[John O'Reilly]

are you pulling in compose code then to SwiftUI iOS project from say iosMain code in shared module?

[Elad Finish]

hope I got you correctly
this is how my ios app gets the code from the shared module (named composables)

[Elad Finish]

RootViewController.kt resides in
composables/src/iosMain/kotlin/com/eladfinish/bible/contest/composables/RootViewController.kt
^

[John O'Reilly]

ah, ok....so it's probably build.gradle.kt in the composeables module that you need to update by adding something like following

compose {
    kotlinCompilerPluginArgs.add("suppressKotlinVersionCompatibilityCheck=1.8.20")
}

[Elad Finish]

Thanks a lot!
I managed to run the project on both Android and iOS
@John O'Reilly