gradle repositories https

repositories {
        jcenter()
        mavenCentral()
    }

Dependency Management Basics

http://stackoverflow.com/questions/27056733/change-gradle-mavencentral-url-to-my-repo

https://docs.gradle.org/current/dsl/org.gradle.api.artifacts.dsl.RepositoryHandler.html

jcenter – The URL used to access this repository is “https://jcenter.bintray.com/”

mavenCentral – https://repo1.maven.org/maven2/

repositories {
      maven {url "http://repo1.maven.org/maven2"}
    }