Hi. When new multiplatform project is created (Lin...

# multiplatform

[rsetkus]

Hi. When new multiplatform project is created (Linux machine), iosMain platform target is set to Multiplatform (screenshot bellow). That causes issues on Mac machine. iosMain cannot access platform code and have to duplicate code in iosArm64Main and iosX64Main . What platform target should be selected for iosMain on which iosArm64 and iosX64 depends on?

Also, noticed that on Android Studio, using new KMM plugin, iosMain platform is set to multiple values Native(ios_arm64), Native(ios_x64). Is it possible to achieve the same on Intellij (platform target is single selection field)?

[Big Chungus]

Google and read about kotlin native commonizer introduced in kotlin 1.4

[Big Chungus]

It's what you need to solve your issue

[rsetkus]

Hi @Big Chungus. Kotlin Native commonizer is exactly what we're trying to achieve but it is not working for us. I suspect it is because of default Intellij module settings. It is inconsistent between Intellij and Android Studio (also Intellij IDE).

I doubt that Native module should be set to Multiplatform option. Android Studio KMM plugin sets to Native(ios_arm64), Native(ios_x64) and commonizer works fine there.

[Big Chungus]

What's your current sourceSet hierarchy?

[Big Chungus]

Also, changing stuff in IDEA module configs ir redundant as it'll be overriden next time you sync gradle

[Big Chungus]

Try creating a new "nativeMain" sourceSet in gradle. Have it depend on commonMain and then have iosMain and linuxMain depend on nativeMain

[Big Chungus]

Note that with this setup IDEA might show you errors, but gradle should still compile fine since commonizer is not yet perfect

[rsetkus]

Current source sets

val commonMain by getting {
            dependencies {
               ...
            }
        }

        val androidMain by getting {
            dependencies {
                ...
            }
        }

        val iosMain by getting {
            dependencies {
                ...
            }
        }

        val iosX64Main by getting {
            dependencies {
                dependsOn(iosMain)
            }
        }

        val iosArm64Main by getting {
            dependencies {
                dependsOn(iosMain)
            }
        }

[rsetkus]

For those who have the same issue and were searching in this channel, my problem was caused by missed gradle properties which is essential when migrating to 1.4 compiler. To resolve commonizer issue, set these values in your gradle.properties

[rsetkus]

kotlin.mpp.enableGranularSourceSetsMetadata=true
kotlin.native.enableDependencyPropagation=false

[Big Chungus]

Thought you had that already as this is the first thing they talk about in release notes 😀

[rsetkus]

We started when 1.3 was around and absolutely missed this tiny little thing 🙂 . There were many things introduced in 1.4, easy to miss. 🙂 Anyway, thanks for you help and effort.

[Big Chungus]

I still have no idea what enableDependencyPropagation actually does and why it is needed