what is difference between compileSdkVersion 'Google Inc.:Google APIs:23' and compileSdkVersion 23

Question

Inside the Gradle.build file I see some projects using

compileSdkVersion="'Google Inc.:Google APIs:23"

and some are just using the number

compileSdkVersion="23"

What is the difference between the two?

Answer 1

The latter one is correct for the vast majority of projects.

The former one would only be needed for apps using the long-since-deprecated Maps V1 API.