How to solve version conflict problem?

i got error when i build my app to perform signing with google

Execution failed for task ‘:processDebugGoogleServices’.

Please fix the version conflict either by updating the version of the google-services plugin (information about the latest version is available at Service End for Bintray, JCenter, GoCenter, and ChartCenter | JFrog) or updating the version of com.google.android.gms to 11.0.1.

I really don’t know how to fix this?