android - 无法使用 firebase-config :16. 0.0 和 firebase-core :16. 0.1 构建

Question

当我使用 latest released versions 构建时firebase-config 和 firebase-core，我得到这个错误:

The library com.google.android.gms:play-services-measurement-base is being requested by various other libraries at [[15.0.4,15.0.4], [16.0.0,16.0.0]], but resolves to 16.0.0. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.

我该如何解决这个依赖冲突？

我的项目 gradle 文件是:

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0-beta01'
        classpath 'com.google.gms:google-services:4.0.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

我的应用模块 gradle 文件是:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.myproject"
        minSdkVersion 17
        targetSdkVersion 27
        versionCode 201
        versionName "1.0.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.1', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:design:27.1.1'

    implementation 'com.google.firebase:firebase-config:16.0.0'
    implementation 'com.google.firebase:firebase-core:16.0.1'

    testImplementation 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'

Answer 1

奇怪的是，当 firebase-core 放在依赖项列表中的其他 Firebase 库之前时，不会发生错误:

dependencies {
    ...
    implementation 'com.google.firebase:firebase-core:16.0.1'
    implementation 'com.google.firebase:firebase-config:16.0.0'
    ...
}