Kotlin MultiPlatform - 发布 Android 库失败

Question

我正在尝试使用新的 Kotlin MultiPlatform 设置发布一个 Android 库（调试/发布）。我成功地能够发布 iOS 框架，但不能发布 android 库。这是我最终得到的错误：

配置项目 ':shared' 时出现问题。

未能通知项目评估侦听器。 Kotlin 目标“android”尝试为非库变体或不存在的 Android 构建变体设置发布： * 发布 * 调试 检查 'publishLibraryVariants' 属性，它应该指向现有的 Android 库变体。不支持发布应用程序和测试变体。

但是，我可以清楚地看到我的 Android Studio 中的变体。我还能够使用库依赖项作为项目依赖项从 Android Studio 运行 Android/IOS 应用程序 implementation(project(":shared"))

只有在尝试发布时才会遇到问题。

这是我的 build.gradle.kts：

plugins {
    kotlin("multiplatform")
    kotlin("plugin.serialization")
    id("com.android.library")
    id("kotlin-android-extensions")
    id("com.squareup.sqldelight")
    id("dev.icerock.mobile.multiplatform-resources")
    `maven-publish`
}

group = "com.sekhar.testkmp"
version = "0.1"
val coroutinesVersion = "1.3.9-native-mt"
val serializationVersion = "1.0.0-RC"
val ktorVersion = "1.4.0"
val sqlDelightVersion: String by project

repositories {
    gradlePluginPortal()
    google()
    jcenter()
    mavenCentral()
}

kotlin {
    android {
        publishLibraryVariants("release", "debug")
    }
    ios {
        binaries {
            framework {
                baseName = "shared"
            }
        }
    }
    sourceSets {
        val commonMain by getting {
            dependencies {
                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutinesVersion")
                implementation("org.jetbrains.kotlinx:kotlinx-serialization-core:$serializationVersion")

                implementation("io.ktor:ktor-client-core:$ktorVersion")
                implementation("io.ktor:ktor-client-serialization:$ktorVersion")

                implementation("com.squareup.sqldelight:runtime:$sqlDelightVersion")
                implementation("dev.icerock.moko:resources:0.13.1")
                implementation("dev.icerock.moko:parcelize:0.4.0")
                implementation("dev.icerock.moko:graphics:0.4.0")
            }
        }
        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:1.2.1")

                implementation("io.ktor:ktor-client-android:$ktorVersion")
                implementation("com.squareup.sqldelight:android-driver:$sqlDelightVersion")
            }
        }
        val androidTest by getting {
            dependencies {
                implementation(kotlin("test-junit"))
                implementation("junit:junit:4.12")
            }
        }
        val iosMain by getting {
            dependencies {
                implementation("io.ktor:ktor-client-ios:$ktorVersion")
                implementation("com.squareup.sqldelight:native-driver:$sqlDelightVersion")
            }
        }
        val iosTest by getting
    }
}

dependencies {
    commonMainApi("dev.icerock.moko:resources:0.13.1")
}

multiplatformResources {
    multiplatformResourcesPackage = "com.sekhar.testkmp" // required
}

android {
    compileSdkVersion(29)
    sourceSets["main"].manifest.srcFile("src/androidMain/AndroidManifest.xml")
    defaultConfig {
        minSdkVersion(24)
        targetSdkVersion(29)
        versionCode = 1
        versionName = "1.0"
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
    buildTypes {
        getByName("release") {
            isMinifyEnabled = false
        }
        getByName("debug") {
            isMinifyEnabled = false
        }
    }
    lintOptions {
        isAbortOnError = 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)```

Answer 1

对此最常见的解决方案是在kotlin 多平台插件：kotlin("multiplatform") 之前应用android 插件：id("com.android.library")。

plugins {
    id("com.android.library")
    kotlin("multiplatform")
    kotlin("plugin.serialization")
    id("kotlin-android-extensions")
    id("com.squareup.sqldelight")
    id("dev.icerock.mobile.multiplatform-resources")
    `maven-publish`
}