could not resolve com.android.tools.build:gradle:4.1.1.

一、报错信息

could not resolve com.android.tools.build:gradle:4.1.1.

其实是因为你的网络不能从AS工程提供的mavenCentral()、google()和jcenter()等仓库下载相应的依赖。

二、解决方法

在build.gradle(Project)中，在原先的maven仓库前加上阿里云镜像源。这里由于AS工程中引入了其他框架，有固定的引用写法，所以在buildscript中不要加上maven { url 'https://www.jitpack.io' }。

buildscript {repositories {maven { url 'https://maven.aliyun.com/repository/public' }maven { url 'https://maven.aliyun.com/repository/central' }maven { url 'https://maven.aliyun.com/repository/jcenter' }maven { url 'https://maven.aliyun.com/repository/google' }maven { url 'https://maven.aliyun.com/repository/gradle-plugin' }mavenCentral()google()jcenter()}dependencies {classpath "com.android.tools.build:gradle:4.1.1"// NOTE: Do not place your application dependencies here; they belong// in the individual module build.gradle files}
}allprojects {repositories {maven { url 'https://www.jitpack.io' }maven { url 'https://maven.aliyun.com/repository/public' }maven { url 'https://maven.aliyun.com/repository/central' }maven { url 'https://maven.aliyun.com/repository/jcenter' }maven { url 'https://maven.aliyun.com/repository/google' }maven { url 'https://maven.aliyun.com/repository/gradle-plugin' }mavenCentral()google()jcenter()}
}task clean(type: Delete) {delete rootProject.buildDir
}

再次同步，可以看到成功下载依赖。
在这里插入图片描述