John questions

• Devise Error : I18n::MissingInterpolationArgument at /users/sign_in for invalid user name and password
• Error : "in `require': cannot load such file -- win32ole (LoadError)" while trying to connect from ruby program to ms access database
• What is the Difference between Active record and ORM in rails?
• Failed to open TCP connection to localhost:9200 (Connection refused - connect(2) for "localhost" port 9200) (Faraday::ConnectionFailed)
• how to get time difference in minutes in rails for two date time fields?

John answers