@Andrew: Thank you so much! That did the trick for me. I missed that one friggin’ line in my build.settings. 
Serves me right for working long hours w/out taking any coffee.
Yes, i also need to mention that that missing out that line gives out an error in the terminal/console :
Generic Error
If the line isn’t there in the sample code, must add it in built settings !!
That error will also appear if your FB app is not set up properly.
Yes, i also need to mention that that missing out that line gives out an error in the terminal/console :
Generic Error
If the line isn’t there in the sample code, must add it in built settings !!
That error will also appear if your FB app is not set up properly.