是因为通过jcenter更新gradle很慢，所以报错，需要在build.gradle中使用国内的仓库源
添加maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
buildscript {
ext.kotlin_version = '1.3.21'
repositories {
google()
maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.4.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
