build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }

    ext {
        global_compileSdkVersion = 26
        global_minSdkVersion = 14
        global_targetSdkVersion = 26

        global_supportVersion = '26.1.0'
        global_constraintLayoutVersion = "1.0.2"

        global_okhttpVersion = '3.4.1'
        global_gsonVersion = '2.8.0'
        global_rxjavaVersion = '2.1.2'
        global_rxandroidVersion = '2.0.1'

        global_junitVersion = '4.12'
        global_runnerVersion = '1.0.1'
        global_espressoVersion = '3.0.1'
    }

}