It looks like KMM Plugin v0.3.0 ( <https://kotlinl...

# multiplatform

[Laurence Muller]

It looks like KMM Plugin v0.3.0 ( https://kotlinlang.org/docs/kmm-plugin-releases.html#release-details ) changed the shared module template a little. While updating a project, I see that val iosMain by getting is now replaced by val iosMain by creating and using

{
  dependsOn(commonMain)
  iosX64Main.dependsOn(this)
  iosArm64Main.dependsOn(this)
  //iosSimulatorArm64Main.dependsOn(this)
}

With iosX64Main and iosArm64Main being split up to its own val .

Does this mean I should be adding the dependencies for both (basically just copy them over in both sections)? For some reason, Android studio doesnt want to resolve the correct driver (for sqldelight in my case). See screenshots in the 🧵 .

[Laurence Muller]

This is how I 'migrated' the dependencies

[Laurence Muller]

On the iOS side, it seems to be unhappy (this is code in the iosMain folder)

[Laurence Muller]

Using kotlin 1.5.31

[Laurence Muller]

rubber duck I think I got it working (by adding new folders, iosX64Main and iosArm64Main and ignoring any implementation in iosMain) but unsure if that's the right way to do this.

[Laurence Muller]

With the above the IDE errors went away but when trying to run the project, the compiler complains:

> Task :shared:compileKotlinIosX64 FAILED
e: /Users/lalala/TestKMM/shared/src/commonMain/kotlin/com/epicwill/testkmm/Platform.kt: (3, 14): Class 'Platform' has several compatible actual declarations in modules <TestKMM:shared>, <TestKMM:shared>
e: /Users/lalala/TestKMM/shared/src/commonMain/kotlin/com/epicwill/testkmm/Platform.kt: (3, 14): Redeclaration: Platform
e: /Users/lalala/TestKMM/shared/src/commonMain/kotlin/com/epicwill/testkmm/Platform.kt: (3, 22): Constructor of 'Platform' has several compatible actual declarations in modules <TestKMM:shared>, <TestKMM:shared>
e: /Users/lalala/TestKMM/shared/src/commonMain/kotlin/com/epicwill/testkmm/Platform.kt: (4, 9): Property 'platform' has several compatible actual declarations in modules <TestKMM:shared>, <TestKMM:shared>
e: /Users/lalala/TestKMM/shared/src/iosMain/kotlin/com/epicwill/testkmm/Platform.kt: (5, 14): Redeclaration: Platform
e: /Users/lalala/TestKMM/shared/src/iosX64Main/kotlin/com/epicwill/testkmm/Platform.kt: (5, 14): Redeclaration: Platform

I guess iosMain isn't smart enought to ignore one of the Platform implementations

[Laurence Muller]

Removed the iosMain folder... and now it seems to build & run for the simulator

[Laurence Muller]

the content folder of iosArm64Main and iosX64Main are the same so this feels wrong to me

[Tijl]

you can change the source folder of both targets to be the same folder (so no need to duplicate the files).

this is the most commonly applied workaround AFAIK.

The real solution is HMPP, which was improved (and enabled by default in the wizards etc) in 1.6, but have not tried switching (back) to it.

[Artyom Degtyarev [JB]]

Hello, @Laurence Muller!
It seems like the new module template does not utilize ios target shortcut(link).
Instead, it does the same thing but manually - declares several ios targets and an intermediate source set being a common between them.
This should not stop you from setting the dependencies inside iosMain block, and using them inside your code located at src/iosMain/kotlin...
In your case, you made a step back from the hierarchical Multiplatform approach. Put the code into a single iosMain, get rid of your ios<Arm/X>64Main s and try again please.

[Laurence Muller]

@Artyom Degtyarev [JB] Thanks! I feel so dumb not trying that initially, but your suggestion works great 🙏 . I think I got thrown off thinking I had to specify the dependencies in their respective architectures.

val iosMain by creating {
            dependsOn(commonMain)
            iosX64Main.dependsOn(this)
            iosArm64Main.dependsOn(this)
            //iosSimulatorArm64Main.dependsOn(this)

            dependencies {
                implementation("com.squareup.sqldelight:native-driver:$sqlDelightVersion")
            }
        }