I'm having trouble running a Kotlin Multiplatform ...

# multiplatform

[Sultan]

I'm having trouble running a Kotlin Multiplatform + Compose Multiplatform iOS app from Android Studio on an Intel MacBook Pro (2019).
Environment
• Intel MacBook Pro 2019 (x86_64)
• Android Studio
• Xcode 26
• Kotlin Multiplatform
• Compose Multiplatform 1.11.1
• Navigation3 1.1.0 / 1.1.1
• Lifecycle Compose 2.11.0-beta01
Initial Problem
When running the iOS app I got:

Execution failed for task ':shared:validateArchitecturesForEmbedAndSignAppleFrameworkForXcode'

Xcode requested target architectures that are not configured in your Gradle build: ios_x64

and

Unknown iOS simulator arch: 'x86_64'

At the time my KMP targets were:

listOf(
    iosArm64(),
    iosSimulatorArm64()
).forEach { iosTarget ->
    iosTarget.binaries.framework {
        baseName = "Shared"
        isStatic = true
    }
}

What I Tried
I added `iosX64()`:

listOf(
    iosX64(),
    iosArm64(),
    iosSimulatorArm64()
).forEach { iosTarget ->
    iosTarget.binaries.framework {
        baseName = "Shared"
        isStatic = true
    }
}

After that, the architecture error disappeared but dependency resolution started failing.
Current Error

KMP Dependencies Resolution Failure

Source set 'appleMain' couldn't resolve dependencies for all target platforms

Examples:

Couldn't resolve dependency
'org.jetbrains.compose.runtime:runtime:1.11.1'

The dependency should target platforms:
[iosArm64, iosX64]

Unresolved platforms:
[iosX64]

Similar errors occur for:
• compose-runtime
• compose-foundation
• compose-ui
• compose-resources
• navigation3-runtime
• navigation3-ui
• lifecycle-viewmodel-compose
• lifecycle-runtime-compose
• savedstate-compose
The detailed error shows Gradle trying to resolve:

org.jetbrains.kotlin.native.target = ios_x64

but failing to find a matching variant.
Question
For an Intel Mac in 2026:
1. What is the recommended iOS target configuration?
2. Should I be using:
iosX64() + iosArm64()
iosX64() + iosArm64() + iosSimulatorArm64()
something else?
3. Has anyone successfully used Compose Multiplatform 1.11.x on an Intel Mac recently?
4. Is this a Kotlin/Compose dependency publication issue, a source set hierarchy issue, or an Xcode 26 compatibility issue?
Any guidance would be appreciated. I can also share my full shared/build.gradle.kts if needed.

[Chrimaeon]

Most probably you will not be able to use a Intel Mac any more as the x64 targets were removed in 1.11 https://kotlinlang.org/docs/multiplatform/whats-new-compose-111.html#changes-to-ios-target-support