java.lang.NoClassDefFoundError: com.google.android.gms.R$string
If you already have your application class just extend it with MultiDexApplication class
Include in your build.gradle dependencies this:
compile 'com.android.support:multidex:1.0.0'
your Manifest add MultiDexApplication class
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.multidex.myapplication">
<application
...
android:name="android.support.multidex.MultiDexApplication">
...
</application>
</manifest>If you already have your application class just extend it with MultiDexApplication class
