# RubyGem version error: rack(0.3.0 not ~\> 1.0.0) on deploy

**URL:** <https://www.ruby-forum.com/t/rubygem-version-error-rack-0-3-0-not-1-0-0-on-deploy/178823>\
**Category:** Rails\
**Created:** [November 11, 2009, 8:36pm UTC](https://www.ruby-forum.com/t/rubygem-version-error-rack-0-3-0-not-1-0-0-on-deploy/178823 "2009-11-11T20:36:00Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Luciano](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/f05b48/32.png) [@Luciano](https://www.ruby-forum.com/u/Luciano)\
**Post date:** [November 11, 2009, 8:36pm UTC](https://www.ruby-forum.com/t/rubygem-version-error-rack-0-3-0-not-1-0-0-on-deploy/178823/1 "2009-11-11T20:36:00Z")

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Hello there!

I’m trying to deploy a application, but capistrano gives me the  
following error:

\*\*\* [err :: [my-domain.com](http://my-domain.com)] rake aborted!  
\*\*\* [err :: [my-domain.com](http://my-domain.com)] RubyGem version error: rack(0.3.0 not ~\>  
1.0.0)  
\*\*\* [err :: [my-domain.com](http://my-domain.com)]

it’s strange because I freeze my application before deploy with:

rake rails:freeze:gems  
rake gems:unpack

does anybody have an advice here?

thanks a lot!

Luciano

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**Author:** ![Luciano](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/f05b48/32.png) [@Luciano](https://www.ruby-forum.com/u/Luciano)\
**Post date:** [November 12, 2009, 3:34pm UTC](https://www.ruby-forum.com/t/rubygem-version-error-rack-0-3-0-not-1-0-0-on-deploy/178823/2 "2009-11-12T15:34:25Z")

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> \*\*\* [err :: [my-domain.com](http://my-domain.com)] RubyGem version error: rack(0.3.0 not ~\>  
> 1.0.0)
> 
> does anybody have an advice here?

maybe capistrano is using the rubygems installed version, not the packed  
one [uninstall the gem on the remote]?  
r

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**Author:** ![Luciano](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/f05b48/32.png) [@Luciano](https://www.ruby-forum.com/u/Luciano)\
**Post date:** [November 12, 2009, 7:17pm UTC](https://www.ruby-forum.com/t/rubygem-version-error-rack-0-3-0-not-1-0-0-on-deploy/178823/3 "2009-11-12T19:17:31Z")

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On Nov 12, 12:29 pm, Luciano [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> > –  
> > Posted viahttp://www.ruby-forum.com/.

He probably means updating Rack on the server. Ask your host if  
they’ll do that; if not, you’ll need to SSH in and install Rubygems in  
your local directory.

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<div class="post-metadata">

**Author:** ![Luciano](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/f05b48/32.png) [@Luciano](https://www.ruby-forum.com/u/Luciano)\
**Post date:** [November 12, 2009, 7:16pm UTC](https://www.ruby-forum.com/t/rubygem-version-error-rack-0-3-0-not-1-0-0-on-deploy/178823/4 "2009-11-12T19:16:21Z")

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hello Roger.

do you mean, updating capistrano on the server (shared host)?

thanks!

Luciano

On Nov 12, 12:34 pm, Roger P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

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**Author:** ![Luciano](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/f05b48/32.png) [@Luciano](https://www.ruby-forum.com/u/Luciano)\
**Post date:** [November 12, 2009, 9:44pm UTC](https://www.ruby-forum.com/t/rubygem-version-error-rack-0-3-0-not-1-0-0-on-deploy/178823/5 "2009-11-12T21:44:28Z")

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Thanks pharrington!