jcenter已经删掉了android.arch.core库，所以需要从 maven { url "https://maven.google.com" }中获取android.arch.core:common-1.1.0.jar
类似下面这种情况的，把顺序调整一下就就行了
allprojects { repositories { jcenter() maven {url 'https://jitpack.io'} maven {url "https://maven.google.com"} } }
变为
allprojects {
repositories {
maven {url "https://maven.google.com"}
jcenter()
maven {url 'https://jitpack.io'}
}
}