編譯報錯 Error:Could not find common.jar (android.arch.core:common:1.0.0).

jcenter已經刪掉了android.arch.core庫，所以需要從 maven { url "https://maven.google.com" }中獲取android.arch.core:common-1.1.0.jar

類似下面這種情況的，把順序調整一下就就行了

allprojects {
    repositories {
        jcenter()
        maven {url 'https://jitpack.io'}
        maven {url "https://maven.google.com"}
    }
}

變爲

allprojects {
    repositories {

        maven {url "https://maven.google.com"}

        jcenter()

        maven {url 'https://jitpack.io'}

   

    }

}