[x86_64Ubuntu]

That's amateur hour stuff. Every developer in pretty much every language or platform learns VERY quickly what happens when you don't do a null check.

[blago]

NSNull is not the null you think

[x86_64Ubuntu]

It may not be a conventional null, but I'm not aware of any tech where calling "count" on a Null, .nil? or otherwise null-like construct won't end horribly.

[plorkyeran]

The Facebook SDK is written in obj-c, where calling `count` on `nil` is perfectly valid and returns 0. It only doesn't work on NSNull, which is a weird different thing that does not work like the language's built-in null.