Gradle peer not authenticated

Gradle编译时报错：gradle:peer not authenticated
处理方法：
Change your repository syntax to one of the following

[codesyntax lang="java"]

repositories {
jcenter {
url "http://jcenter.bintray.com/"
}
}

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

[/codesyntax]

PS：大概意思就是修改 项目build.gradle文件，repostories修改成上边的任意一条的内容，就可以了