Rails 5, Undefined method `for' for #<Devise on line devise_parameter_sanitizer.for

Question

I am working with Rails 5

I aded new field username in model User.

class Users::RegistrationsController < Devise::RegistrationsController
  before         


        

Answer 1

class ApplicationController < ActionController::Base

  before_action :configure_permitted_paramters, if: :devise_controller?

  protected
    def configure_permitted_paramters

        devise_parameter_sanitizer.permit(:sign_up, keys: [:fullname])

        devise_parameter_sanitizer.permit(:account_update, keys: [:fullname, 
        :phone_number, :description, :email, :password])

    end

end