Could not resolve all artifacts for configuration ‘:classpath‘.如何解决

第一步

将这里切换成project 在android状态下什么都加载不出来

第二步

找见这么个文件 把里面的内容替换成如下代码：

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/google' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'}
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
allprojects {
    repositories {
//    google()
//    jcenter()
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/google' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'}
    }
}

第三步

点击File --invalidate Caches/Restart

之后静静等待奇迹的发生。