Millet_note/src/Note-master2/build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        maven{
            url "https://plugins.gradle.org/m2/"
        }
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:7.0.2'
        classpath 'com.google.gms:google-services:4.0.1'  //这行对谷歌服务库进行依赖

    }
}
//apply plugin: "org.sonarqube"
/*plugins {
    id "org.sonarqube" version "2.7"
}*/
allprojects {
    repositories {
        google()
        jcenter()
        mavenCentral()
        maven {url 'https://dl.bintray.com/jetbrains/anko'} //这是你需要加入的，这个是解决这个问题的关键地方，我就是添加这个maven后不再报上面的错误了
        maven {url "https://maven.google.com"} //谷歌广告
    }
}

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