ruby - Rails Devise Requires Email -

I have seen many threads on them, although this issue was not solved for me (other people's issues were resolved ) I'm trying to sign in through a username password and no email, but I get the "SELECT" user. * "Users" from Where "Users" "Email" ISL No 1

Here is my code:

  class user & lt; ActiveRecord :: Base # Device: Omnibal DeviseTokenAuth :: Concerns: User Planning: authentication_keys = & gt; [: Username] end  

in devise.rb:

  config.confirmation_keys = [: username] config.authentication_keys = [: username] config .case_insensitive_keys = [: username] config.strip_whitespace_keys = [: username]  

I do not really know where the error might occur ..

< P>