Here if you are referring to my previous answers Here is an Update. 1. Compile would be removed from the dependencies after 2018.
a new version build Gradle is available.
Use the above-noted stuff it will help you to resolve the errors. It is needed for the developers who are working after March 2018. Also, maven update might be needed. All above answers will not work on the Android Studio 3.1. Hence Above code block is needed to be changed if you are using 3.1. See also I replaced compile by implementation.