# Sudo rake gems:install

**URL:** <https://www.ruby-forum.com/t/sudo-rake-gems-install/191874>\
**Category:** Rails\
**Created:** [July 20, 2010, 3:15am UTC](https://www.ruby-forum.com/t/sudo-rake-gems-install/191874 "2010-07-20T03:15:27Z")\
**Posts on this page:** 4\
**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 20, 2010, 3:15am UTC](https://www.ruby-forum.com/t/sudo-rake-gems-install/191874/1 "2010-07-20T03:15:27Z")

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I have upgraded to Rails3beta4 from Rails 2.3.8.

I used to run the following command for ensuring that gems are  
installed:

> > sudo rake gems:install

But, now, I get the following when running this command on the  
Rails3beta4 environment:

rake aborted!  
Don’t know how to build task ‘gems:install’

(See full trace by running task with --trace)

Why is that? Should I use another command for Rails3beta4?

Thanks.

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<div class="post-metadata">

**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 20, 2010, 4:11pm UTC](https://www.ruby-forum.com/t/sudo-rake-gems-install/191874/2 "2010-07-20T16:11:30Z")

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Abder-Rahman A. wrote:

> I have upgraded to Rails3beta4 from Rails 2.3.8.
> 
> I used to run the following command for ensuring that gems are  
> installed:
> 
> > > sudo rake gems:install

Read up on the new Bundler for use with Rails 3.

Here’s a place to start:

> **[Using the New Gem Bundler Today](https://yehudakatz.com/2009/11/03/using-the-new-gem-bundler-today/)**
>
> As you might have heard, Carl and I released a new project that allows you to
> bundle your gems (both pure-ruby and native) with your application. Before I get
> into the process for using the bundler today, I'd like to go into the design
> goals of the...

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<div class="post-metadata">

**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 20, 2010, 5:17pm UTC](https://www.ruby-forum.com/t/sudo-rake-gems-install/191874/3 "2010-07-20T17:17:08Z")

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Robert W. wrote:

> Abder-Rahman A. wrote:
> 
> > I have upgraded to Rails3beta4 from Rails 2.3.8.
> > 
> > I used to run the following command for ensuring that gems are  
> > installed:
> > 
> > > > sudo rake gems:install
> 
> Read up on the new Bundler for use with Rails 3.
> 
> Here’s a place to start:  
> [Using the New Gem Bundler Today](http://yehudakatz.com/2009/11/03/using-the-new-gem-bundler-today/)

Thanks Robert.

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<div class="post-metadata">

**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 20, 2010, 5:18pm UTC](https://www.ruby-forum.com/t/sudo-rake-gems-install/191874/4 "2010-07-20T17:18:32Z")

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Maybe:

> > sudo rake gems:install is wrong? I mean, there shouldn’t be “rake” here? For Rails 2.3.x at least, as I figured out that we need “bundle” in Rails3.