Kotlin MultiPlatform项目中的MultiPlatform依赖关系不解决

Question

我正试图开发一个小型库，将问题发布到我公司的Jira服务器上，我认为Kotlin / KTOR只是一张票。

首先，在几个教程之后，我做了一个共享项目，iOS的导入运行良好，但安卓的Ktor实现无法解决。然后我意识到我需要重新创建这个项目，创建一个库而不是一个共享的应用程序，因为我已经为每个移动客户端建立了现有的代码库，并且我需要发布供他们使用的MPP库。

当将项目重新创建为一个库，并简单地开始添加KTOR 1.3.2的依赖项时，iOS依赖项就无法解决。这不仅仅是KTOR，它是任何iOS依赖，所以在我的项目设置中显然有一些不正确的地方，但是我无法发现它。

下面是gradle文件：

plugins {
    id 'org.jetbrains.kotlin.multiplatform' version '1.3.72'
}

repositories {
    jcenter()
    mavenCentral()
    maven { url "https://kotlin.bintray.com/kotlinx" }
}

group 'com.example.issuereporter'
version '0.0.1'

apply plugin: 'maven-publish'

kotlin {

    targets {
        final def iOSTarget = System.getenv('SDK_NAME')?.startsWith("iphoneos") ? presets.iosArm64 : presets.iosX64

        fromPreset(iOSTarget, 'ios') {
            binaries {
                framework('IssueReporter')
            }
        }


        fromPreset(presets.jvm, 'android')
    }

    def ktor_version = "1.3.2"

    sourceSets["commonMain"].dependencies {
        implementation kotlin('stdlib-common')

        implementation "io.ktor:ktor-client-core:$ktor_version"
        implementation "io.ktor:ktor-client-json:$ktor_version"
        implementation "io.ktor:ktor-client-serialization:$ktor_version"
    }

    sourceSets["commonTest"].dependencies {
        implementation kotlin('test-common')
        implementation kotlin('test-annotations-common')
    }

    sourceSets["androidMain"].dependencies {
        implementation kotlin('stdlib')

        implementation "io.ktor:ktor-client-core-jvm:$ktor_version"
        implementation "io.ktor:ktor-client-json-jvm:$ktor_version"
        implementation "io.ktor:ktor-client-serialization-jvm:$ktor_version"
        implementation "io.ktor:ktor-client-auth-jvm:$ktor_version"

    }

    sourceSets["androidTest"].dependencies {
        implementation kotlin('test')
        implementation kotlin('test-junit')
    }

    sourceSets["iosMain"].dependencies {
        implementation "io.ktor:ktor-client-ios:$ktor_version"
        implementation "io.ktor:ktor-client-core-native:$ktor_version"
        implementation "io.ktor:ktor-client-json-native:$ktor_version"
        implementation "io.ktor:ktor-client-serialization-native:$ktor_version"
    }


}

configurations {
    compileClasspath
}


task packForXcode(type: Sync) {
    final File frameworkDir = new File(buildDir, "xcode-frameworks")
    final String mode = project.findProperty("XCODE_CONFIGURATION")?.toUpperCase() ?: 'DEBUG'
    final def framework = kotlin.targets.ios.binaries.getFramework("IssueReporter", mode)

    inputs.property "mode", mode
    dependsOn framework.linkTask

    from { framework.outputFile.parentFile }
    into frameworkDir

    doLast {
        new File(frameworkDir, 'gradlew').with {
            text = "#!/bin/bash\nexport 'JAVA_HOME=${System.getProperty("java.home")}'\ncd '${rootProject.rootDir}'\n./gradlew \$@\n"
            setExecutable(true)
        }
    }
}

tasks.build.dependsOn packForXcode

控制台输出为

Could not resolve io.ktor:ktor-client-ios:1.3.2.
Could not resolve io.ktor:ktor-client-core-native:1.3.2.
Could not resolve io.ktor:ktor-client-json-native:1.3.2.
Could not resolve io.ktor:ktor-client-serialization-native:1.3.2.

有什么明显的事我在这里失踪了吗？

更新

我废弃并重新创建了项目w/ IntelliJ (IntelliJ IDEA 2019.3.5 (Community ))的更新版本&Kotlin1.4.0插件。这给了我一个稍微不同的创建向导，以及使用Kotlin作为Gradle语法的选项。

更新的build.gradle.kts文件：

plugins {
    kotlin("multiplatform") version "1.4.0"
    kotlin("plugin.serialization") version "1.4.0"
    id("com.android.library")
    id("kotlin-android-extensions")
}
group = "com.example.issuereporter"
version = "1.0-SNAPSHOT"

repositories {
    gradlePluginPortal()
    google()
    jcenter()
    mavenCentral()
    maven(url = "https://kotlin.bintray.com/kotlinx")
    maven(url = "https://dl.bintray.com/kotlin/ktor")
    maven(url = "https://repo1.maven.org/maven2/")
    maven(url = "https://dl.bintray.com/kotlin/kotlin-eap")
    maven(url = "https://plugins.gradle.org/m2/")
}
kotlin {
    android()
    iosX64("ios") {
        binaries {
            framework {
                baseName = "library"
            }
        }
    }

    val ktor_version = "1.3.2"
    val serialization_version = "0.20.0"

    sourceSets {
        val commonMain by getting {
            dependencies {
                implementation("io.ktor:ktor-client-core:$ktor_version")
                implementation("io.ktor:ktor-client-json:$ktor_version")
                implementation("io.ktor:ktor-client-serialization:$ktor_version")
                implementation("io.ktor:ktor-client-auth:$ktor_version")
                implementation("io.ktor:ktor-client-apache:$ktor_version")

                implementation("org.jetbrains.kotlinx:kotlinx-serialization-runtime-common:$serialization_version")
            }
        }
        val commonTest by getting {
            dependencies {
                implementation(kotlin("test-common"))
                implementation(kotlin("test-annotations-common"))
            }
        }
        val androidMain by getting {
            dependencies {
                implementation("androidx.core:core-ktx:1.2.0")

                implementation("io.ktor:ktor-client-android:$ktor_version")
                implementation("io.ktor:ktor-client-auth-jvm:$ktor_version")
                implementation("io.ktor:ktor-client-json-jvm:$ktor_version")
            }
        }
        val androidTest by getting
        val iosMain by getting {
            dependencies {
                implementation("io.ktor:ktor-client-ios:$ktor_version")
                implementation ("io.ktor:ktor-client-core-native:$ktor_version")
                implementation("io.ktor:ktor-client-json-native:$ktor_version")
                implementation("io.ktor:ktor-client-auth-native:$ktor_version")
            }
        }
        val iosTest by getting
    }
}
android {
    compileSdkVersion(29)
    defaultConfig {
        minSdkVersion(24)
        targetSdkVersion(29)
        versionCode = 1
        versionName = "1.0"
    }
    buildTypes {
        getByName("release") {
            isMinifyEnabled = false
        }
    }
}

当我将iOS的ktor_version设置为1.3.2而不是1.4.0 (假设镜像尚未更新本机文件？)时，1.3.2的gradle依赖项成功同步？但是当我试图使用这个类时，导入根本不编译.见附图：

​

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Answer 1

我猜你没有enableFeaturePreview("GRADLE_METADATA") in settings.gradle。

settings.gradle

有关1.3.72上正在运行的示例，请查看初学者项目KaMPKit。本周我们可能会把这个数字提高到1.4.0，但就目前而言，它应该是一个很好的参考。