MVC5 Null Reference with facebook login

Question

Im getting an null reference exception sometimes when I login with facebook using the out of the box ASP.NET mvc5 accounts controller.

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Answer 1

I had a facebook account that did not have a user name set that was giving me a null exception message on that line of code. It seems the problem here is that some properties are expected in the account when returning information back to your application, and if those properties aren't present, it bombs. In my case, setting the user name in facebook fixed the problem.