framework 'shared.framework' is missing one or more architectures required by this target: arm64. Xcode 12.0 kotlin 1.4.10

Question

I created a shared library for both iOS and Android using Kotlin Multiplatform and everything was working correctly until I not updated the Xcode to 12.0

As I updated Xcode to 12.0 the framework stopped working for real device (iphone) but working on simulator

my Gradle

import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget

plugins {
    kotlin("multiplatform")
    id("com.android.library")
    id("kotlin-android-extensions")
}
group = "com.example.multiplatform_android_ios"
version = "1.0-SNAPSHOT"

repositories {
    gradlePluginPortal()
    google()
    jcenter()
    mavenCentral()
}
kotlin {
    android()
    ios {
        binaries {
            framework {
                baseName = "shared"
            }
        }
    }
    sourceSets {
        val commonMain by getting
        val commonTest by getting {
            dependencies {
                implementation(kotlin("test-common"))
                implementation(kotlin("test-annotations-common"))
            }
        }
        val androidMain by getting {
            dependencies {
                implementation("com.google.android.material:material:1.2.0")
            }
        }
        val androidTest by getting {
            dependencies {
                implementation(kotlin("test-junit"))
                implementation("junit:junit:4.12")
            }
        }
        val iosMain by getting
        val iosTest by getting
    }
}
android {
    compileSdkVersion(29)
    sourceSets["main"].manifest.srcFile("src/androidMain/AndroidManifest.xml")
    defaultConfig {
        minSdkVersion(24)
        targetSdkVersion(29)
        versionCode = 1
        versionName = "1.0"
    }
    buildTypes {
        getByName("release") {
            isMinifyEnabled = false
        }
    }
}
val packForXcode by tasks.creating(Sync::class) {
    group = "build"
    val mode = System.getenv("CONFIGURATION") ?: "DEBUG"
    val sdkName = System.getenv("SDK_NAME") ?: "iphonesimulator"
    val targetName = "ios" + if (sdkName.startsWith("iphoneos")) "Arm64" else "X64"
    val framework = kotlin.targets.getByName<KotlinNativeTarget>(targetName).binaries.getFramework(mode)
    inputs.property("mode", mode)
    dependsOn(framework.linkTask)
    val targetDir = File(buildDir, "xcode-frameworks")
    from({ framework.outputDirectory })
    into(targetDir)
}
tasks.getByName("build").dependsOn(packForXcode)

Xcode 12.0 Android Studio 4.1 RC 3 Kotlin 1.4.10

com.android.tools.build:gradle:4.1.0-rc03

Answer 1

I also got the same problem, and resolved by following these steps:

• Close Android Studio
• Delete build folder inside shared module
• Now open iOS App in Xcode and plug in your device
• Make sure you have run this script inside build phase of Xcode project

cd "$SRCROOT/.."
./gradlew :shared:packForXCode -PXCODE_CONFIGURATION=${CONFIGURATION}

• Now build project and it will be successful