回复谷歌:https://issuetracker.google.com/issues/74048134

会有一些依赖仍然使用编译，仔细检查你的应用程序依赖和传递依赖。

我已经更新了com.google。Gms:google-services从3.1.1升级到3.2.0，警告停止出现。

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath("com.android.tools.build:gradle:3.1.0")

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
    
    classpath("com.google.gms:google-services:3.2.0")
    }
}

回到你的位置。在项目级别的Gradle文件中，您会发现以下行突出显示

dependencies {
    classpath 'com.android.tools.build:gradle:3.1.4'  //place your cursor over here 
    //and hit alt+enter and it will show you the appropriate version to select


    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files

    classpath 'com.google.gms:google-services:4.0.2' //the same as previously
}

你有两种选择:

在project: build中添加类路径'com.google.gms:google-services:3.2.0'。gradle依赖性 而且 替换模块:build。Gradle依赖于编译实现 而且你不会收到任何警告信息。

不需要拆线。正如Jkrevis所写的，更新com.google。Gms:google-services升级到3.2.0并停止警告。

我有一个相同的警告导致com.google.gms:google-services。

解决方案是升级classpath com.google。Gms:google-services到类路径'com.google.gms:google-services:3.2.0'在文件中构建。gradle项目:

buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:3.2.0'
    }
}

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

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

在Android Studio 3.1版本中，依赖项compliword被替换为 实现

在android studio 3.1中依赖Warning

dependencies {
            compile fileTree(dir: 'libs', include: ['*.jar'])
            compile 'com.android.support:appcompat-v7:27.1.0'
            compile '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'
    }

在android studio 3.1中确定依赖

    dependencies {
            implementation fileTree(dir: 'libs', include: ['*.jar'])
            implementation 'com.android.support:appcompat-v7:27.1.0'
            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'

    }

graddel生成的Android Studio 3.1的新项目。

访问https://docs.gradle.org/current/userguide/dependency_management_for_java_projects.html

详情https://docs.gradle.org/current/userguide/declaring_dependencies.html