title: Rails 5 devise omniauth-facebook Error: Sorry, something went wrong
body: <p>I am following Devise's official guide from top to <a href="https://github.com/plataformatec/devise/wiki/OmniAuth:-Overview#logout-links" rel="nofollow">this section</a>. My <code>CALLBACK_URL</code> is <code>http://localhost:3000/users/auth/facebook/callback</code>, which I think might be the problem but I'm not sure. When I click on Sign in with Facebook, I run into this error:<br>
  <strong>Sorry, something went wrong.</strong><br>
  on this link:<br>
  <code>https://www.facebook.com/v2.6/dialog/oauth?client_id=193217371133539&amp;redirect_uri=https%3A%2F%2Flocalhost%3A3000%2Fusers%2Fauth%2Ffacebook%2Fcallback&amp;response_type=code&amp;scope=user%2Cpublic_repo&amp;state=3913c12e0e4ce8b422732c9159c0fb1fb7351d100487849d</code>  </p>
  
  <p>Rails version: Rails 5.0.0.1<br>
  Ruby version(using rbenv): ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin16]</p>