android could not resolve

因为墙的原因

allprojects {
    repositories {
        google()
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
//        maven { url 'https://jitpack.io' }
        jcenter()
        maven { url "https://jitpack.io" }
    }
}

有时候一个阿里云的不好用，再加上jitpack.io的