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

Searched in the following locations:

https://jcenter.bintray.com/android/arch/core/common/1.0.0/common-1.0.0.jar

据说这个是Google最近的一个bug，解决方案是：

将 依赖包中的“+”改成响应的版本号。问题就可以解决。具体版本号如下。

API 24:

implementation 'com.android.support:appcompat-v7:24.2.1'

implementation 'com.android.support:recyclerview-v7:24.2.1'

API 25:

implementation 'com.android.support:appcompat-v7:25.4.0'

implementation 'com.android.support:recyclerview-v7:25.4.0'

API 26:

implementation 'com.android.support:appcompat-v7:26.1.0'

implementation 'com.android.support:recyclerview-v7:26.1.0'

API 27:

implementation 'com.android.support:appcompat-v7:27.1.1'

implementation 'com.android.support:recyclerview-v7:27.1.1'