NameError：未初始化的常量Object :: User

Question

I searched the other posts that had this issue and could not find one that fixed my particular issue. My irb is going crazy. I am trying to change user roles in my database but I can't even get to my users!

irb(main):001:0> User.all
NameError: uninitialized constant Object::User
        from (irb):1
        from c:/Ruby192/bin/irb:12:in `<main>'

It was working fine, stopped working, was fine, and now stopped again. I have a User model and users added. I cannot pinpoint the issue. Let me know what code you need to see. Thanks!

Answer 1

You should run

ruby script/console # Rails < 3

or

rails c  # Rails 3.x

But not (I believe you've just run this)

irb

Answer 2

确保您实际使用的是rails console命令，而不是仅在项目文件夹中运行irb 。