Step 1: Login into your Facebook developers account https://developers.facebook.com/

Step 2:Go to settings

Step 3: Click on basic

Step 4 : Locate add platform

Step 5: Select android

then provide your

1 .app package name  example  “com.procrea8.crea8social” change “crea8social” to your own package name

2. app Launcher activity “example “com.procrea8.crea8social.activity.MainActivity”   change “crea8social” to your own package name as shown below in the image for a package name “finker”.

3.Key Hashes  use this  “XhoYY6kNGTgLapLKZGZOggfvz3M=” copy and paste .

Step 6 : Click on save editions”