无法在多风格应用程序中构建功能模块

Question

我在 Android Studio 3.1.1 上使用 Gradle 4.4 和 Gradle-Android 插件 3.1.1。

我有 2 种口味“a”和“b”，由于以下错误，我无法构建我的项目：

Cannot choose between the following configurations of project :app:
  - aDebugMetadataElements
  - bDebugMetadataElements
All of them match the consumer attributes:
  - Configuration 'aDebugMetadataElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
      - Found com.android.build.api.attributes.VariantAttr 'aDebug' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Metadata' and found compatible value 'Metadata'.
      - Found dim 'a' but wasn't required.
  - Configuration 'bDebugMetadataElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
      - Found com.android.build.api.attributes.VariantAttr 'bDebug' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Metadata' and found compatible value 'Metadata'.
      - Found dim 'b' but wasn't required.

app build.gradle：

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "me.xyz.flavors"
        minSdkVersion 19
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        debug{
            testCoverageEnabled true
        }
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    flavorDimensions "dim"
    productFlavors{
        a{
            dimension "dim"
        }
        b{
            dimension "dim"
        }

    }


}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation project(':base')
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}

基础功能 build.gradle：

apply plugin: 'com.android.feature'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
    compileSdkVersion 27
    baseFeature true
    defaultConfig {
        minSdkVersion 19
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    buildTypes {
        aDebug {
            testCoverageEnabled true
        }
        bDebug {
            testCoverageEnabled true
        }
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    application project(':app')
    api 'com.android.support:appcompat-v7:27.1.1'
    api 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    api "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
}

到目前为止，我已经尝试了以下解决方案，但没有成功：

• AS 3.0 test-only module Cannot choose between the following configurations of project :abcMobile:

• Single flavor module based on multi flavor library in Gradle

• Android Studio 3.0 Error. Migrate dependency configurations for local modules

编辑：

根据 cmets 和一个答案，我尝试为这两种口味提供不同的 applicationIdSuffix，但问题仍然存在：

productFlavors{
        a{
            applicationIdSuffix ".a"
            dimension "dim"
        }
        b{
            applicationIdSuffix ".b"
            dimension "dim"
        }

    }

Answer 1

感谢用户TWL 将我指向google samples for instant apps, with an example for flavors。

我们还需要在所有功能模块、应用程序模块和即时应用程序模块中声明风味。从今天开始，使用插件版本 3.1.1 可以跳过库模块。换句话说，在所有功能和已安装/即时模块中都有此部分：

flavorDimensions "dim"
productFlavors{
    a{
        dimension "dim"
    }
    b{
        dimension "dim"
    }
}

Answer 2

FWIW 你不必在你的模块中有匹配的风格。您可以告诉它回退到默认构建类型。

通过使用matchingFallbacks

buildTypes {
    aDebug {
        testCoverageEnabled true
        matchingFallbacks = ['debug']
    }
    bDebug {
        testCoverageEnabled true
        matchingFallbacks = ['debug']
    }
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        // This one already looks for 'release' which is added by default, so no need for fallback
    }
}

https://developer.android.com/studio/build/dependencies#resolve_matching_errors

Answer 3

您似乎没有指定 a 和 b 包的名称的区别。下面是我在AS 2.3.3的app 级别build.gradle 中为API 25 和com.android.tools.build:gradle:2.3.1 实现flavor 功能的工作：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"

    defaultConfig {
        applicationId "com.example"
        minSdkVersion 14
        targetSdkVersion 25
        versionCode 1
        versionName "1.00"
    }

    signingConfigs {
        config {
            storeFile file(STORE_PATH)
            keyAlias KEY_ALIAS
            keyPassword KEY_PASSWORD
            storePassword KEYSTORE_PASSWORD
        }
    }

    productFlavors {
        nosync {
            applicationIdSuffix ".nosync"
            versionNameSuffix '-nosync'
            signingConfig signingConfigs.config
        }
        sync {
            signingConfig signingConfigs.config
        }
    }

    buildTypes {
        release {
            debuggable false
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.config
        }
        debug {
            debuggable true
            signingConfig signingConfigs.config
        }
    }

dependencies {
    ...
}

看看区别

applicationIdSuffix ".nosync"
versionNameSuffix '-nosync'

介于nosync 和sync 之间。它将更改包名nosyncapk。