While I was late for the party, I decided to add the actual fix to the source code, as I was facing the same problem.
In Kassem above the code on the 4th line:
var fb = new FacebookWebClient(FacebookWebContext.Current);
- this is what caused the error in the name for me. Replacing it:
var fb = new FacebookWebClient(FacebookApplication.Current.AppId, FacebookApplication.Current.AppSecret);
The problem is fixed.
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