# Updated to Rails 3.0.0.beta4. Is it the problem?

**URL:** <https://www.ruby-forum.com/t/updated-to-rails-3-0-0-beta4-is-it-the-problem/191844>\
**Category:** Rails\
**Created:** [July 19, 2010, 6:45pm UTC](https://www.ruby-forum.com/t/updated-to-rails-3-0-0-beta4-is-it-the-problem/191844 "2010-07-19T18:45:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![swengineer](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/97f17d/32.png) [@swengineer](https://www.ruby-forum.com/u/swengineer)\
**Post date:** [July 19, 2010, 6:45pm UTC](https://www.ruby-forum.com/t/updated-to-rails-3-0-0-beta4-is-it-the-problem/191844/1 "2010-07-19T18:45:51Z")

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I have updated to Rails 3.0.0.beta4

I’m trying to install this plugin:

> **[GitHub - heartcombo/devise: Flexible authentication solution for Rails with...](https://github.com/heartcombo/devise)**
>
> Flexible authentication solution for Rails with Warden. - GitHub - heartcombo/devise: Flexible authentication solution for Rails with Warden.

There is a command I’m trying to run: rails generate devise:install

But, I get the following: [http://pastie.org/1050651](http://pastie.org/1050651)

For example, in Rails 2.3.8, when I used to create a new Rails  
application I used to type:

> > Rails app\_name

But, I noticed that with Rails 3.0.0.beta4, I had to do that using:

> > Rails new app\_name

So, how can I run: rails generate devise:install ?

Thanks.