Hi guys, i’m having a weird build issue for on my ...

# multiplatform

[Loe]

Hi guys,
i’m having a weird build issue for on my sharedModule.
i’m trying to port google ML Kit api into KMP project. The Android app runs fine but the iOS build crashes whith the following error.

The specific library i’m trying to import is : implementation("com.google.mlkit:vision-common:17.3.0")

This is my shared gradle

sourceSets {
    val commonMain by getting {
        dependencies {
            // PointF3D:
            implementation("com.google.mlkit:vision-common:17.3.0")
        }
    }
}

This is the build error Log

> Task :shared:compileKotlinIosX64 FAILED
data/pose/PoseRepo.kt:11:12 Unresolved reference: google
data/pose/classification/MathUtil.kt:11:12 Unresolved reference: PointF3D

[Loe]

btw klint highlights the imported com.google.mlkit.vision.common.PointF3D library, but the Android project compiles and runs

[Landry Norris]

The gradle is just for android. You'll need to find a cocoapod for iOS and create an expect/actual.

[Loe]

@Landry Norris i’m confused with your answer. what i’m trying to do is share a code between Android and iOS, and the code is not platform specific.

[Landry Norris]

When you gradle sync, do you get errors saying it can't find vision-common for ios targets? I don't think MLKit supports KMM directly yet. You'll have to use expect/actual.

[Loe]

I get that kind of error if I include implementation("com.google.mlkit:pose-detection-common:18.0.0-beta3")

:shared:iosArm64Main: Could not resolve org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.0.
Required by:
    project :shared > com.google.mlkit:pose-detection-common:18.0.0-beta3 > com.google.mlkit:acceleration:16.0.0-beta1 > androidx.work:work-multiprocess:2.7.0
    project :shared > com.google.mlkit:pose-detection-common:18.0.0-beta3 > com.google.mlkit:acceleration:16.0.0-beta1 > androidx.work:work-multiprocess:2.7.0 > androidx.work:work-runtime-ktx:2.7.0

Possible solution:
 - Declare repository providing the artifact, see the documentation at <https://docs.gradle.org/current/userguide/declaring_repositories.html>

[Loe]

but your answer about using expect/actual makes sense. Thank you.

[Landry Norris]

Yeah. You're trying to import the android binary in commonMain. Move it to androidMain, add the pod to iosMain, and create an expect/actual.