versions.gradle

allprojects {
  ext {
    buildTools = "27.0.3"
    compileSdk = 27
    googlePlayServicesVersion = "11.8.0"
    minSdk = 16
    targetSdk = 23
  }

  configurations.all {
    resolutionStrategy {
      eachDependency { details ->
        if (details.requested.group == "com.google.android.gms") {
            details.useVersion googlePlayServicesVersion
        }
      }
    }
  }

  afterEvaluate { project ->
    if (project.hasProperty("android")) {
      android {
        buildToolsVersion buildTools
        compileSdkVersion compileSdk

        defaultConfig {
          minSdkVersion minSdk
          targetSdkVersion targetSdk
        }
      }
    }
  }
}