1. まずDeviseで複数モデルを作成 rails generate devise user rails generate devise company 2. routesの設定 devise_for :users, path: 'users' # eg. http://localhost:3000/users/sign_in devise_for :companies, path: 'companies' # eg. http://local…

config>emviroment>development.rbに下記を記載 config.logger = Logger.new(STDOUT) コマンド tail -f log/development.log