Apply shared dependencies to android project

build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
apply from: 'dependencies.gradle'

buildscript {
    // Gradle will not find vars defined in an external file when referring to them
    // in the buildscript block, unless you link it from the buildscript block, too.
    apply from: 'dependencies.gradle'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        gradlePlugins.each { plugin ->
            classpath plugin
        }
    }
}
// rest of your root build.gradle