I am getting error and not able to build the gradle after i made changes in this following line,but i want 8.4.0 in my gradle
app.gradle
compile 'com.google.android.gms:play-services:8.4.0'
project.gradle
dependencies {
classpath 'com.android.tools.build:gradle:2.0.0-beta6'
classpath 'com.google.gms:google-services:2.0.0-beta6'