if you are using gradle from project and using 3.0.0 AS then need include Googles Maven repo

build.gradle

@@ -3,6 +3,7 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.0.0'
@@ -16,6 +17,7 @@ allprojects {
     repositories {
         jcenter()
         maven { url "https://www.jitpack.io" }
+        google()
     }
 }