Started POST "/users/facebook_invitations" for 127.0.0.1 at 2014-09-17 16:36:26 +0200
Processing by FacebookInvitationsController#create as */*
  Parameters: {"facebook_invitation"=>"1557600186"}
  User Load (1.0ms)  SELECT  "users".* FROM "users"  WHERE "users"."id" = 2  ORDER BY "users"."id" ASC LIMIT 1
  Parent Load (0.7ms)  SELECT  "parents".* FROM "parents"  WHERE "parents"."user_id" = $1 LIMIT 1  [["user_id", 2]]
Completed 500 Internal Server Error in 8ms

NoMethodError (undefined method `permit' for "1557600186":String):
  app/controllers/facebook_invitations_controller.rb:17:in `facebook_invitation_params'
  app/controllers/facebook_invitations_controller.rb:9:in `create'


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