Ruby on Rails 5未初始化的常量ApplicationRecord（NameError）

Question

I keep getting this error "/home/ubuntu/workspace/au5/app/models/user.rb:1:in `': uninitialized constant ApplicationRecord (NameError)"

I'm new to Ruby on Rails and am following a tutorial on learning to create a sign/login page.

user.rb

class User < ApplicationRecord
    has_secure_password
end

What am i doing wrong?

Code:

if you want to have a look the files can be find here

https://preview.c9users.io/salman15/consulegem

Answer 1

Make sure that the app/models/application_record.rb file exists and that it has the following (or similar) code

# Base ApplicationRecord Class
class ApplicationRecord < ActiveRecord::Base
  self.abstract_class = true
end

If not, add it. It should have been generated by rails new .