Androidstudio文件gradle无法获取‘.pom’文件

Could not GET ‘https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom  ‘. Received status code 400 from server: Bad Request

解决方案：

修改文件 build.gradle

将原来的：

buildscript {
    repositories {
        google()
        jcenter()
    }
    ...
}

修改成：

buildscript {
    repositories {
        google()
        jcenter()
        maven {
            url 'http://maven.aliyun.com/nexus/content/groups/public/'
        }
    }
    ...
}