FB.getLoginStatus() called before calling FB.init()

Question

I\'ve this message in my console

FB.getLoginStatus() called before calling FB.init(). 

My code

Answer 1

I answered to a similar SO question here.
Actually, if you also cannot see the Like button at all, then this question is an exact duplicate of the other one.

In my case, I'm seeing the console error, but I do see the Like button as well.