# Cannot activate feedtools gem due to frozen rails install

**URL:** <https://www.ruby-forum.com/t/cannot-activate-feedtools-gem-due-to-frozen-rails-install/160916>\
**Category:** Rails\
**Created:** [February 20, 2009, 10:14pm UTC](https://www.ruby-forum.com/t/cannot-activate-feedtools-gem-due-to-frozen-rails-install/160916 "2009-02-20T22:14:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rroman81](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bc8723/32.png) [@rroman81](https://www.ruby-forum.com/u/rroman81)\
**Post date:** [February 20, 2009, 10:14pm UTC](https://www.ruby-forum.com/t/cannot-activate-feedtools-gem-due-to-frozen-rails-install/160916/1 "2009-02-20T22:14:48Z")

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I got feedtools 0.23 installed. I am trying to familiarize with the gem  
but when i do “require ‘feed\_tools’” in script/console of the app, i get  
this:  
Gem::Exception: can’t activate activerecord (\>= 1.10.1, runtime),  
already activated activerecord-2.1.0

The app has rails 2.1.0 frozen and I have rails 2.2.2 installed on the  
system.  
How would I troubleshoot this?

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<div class="post-metadata">

**Author:** ![rroman81](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bc8723/32.png) [@rroman81](https://www.ruby-forum.com/u/rroman81)\
**Post date:** [February 21, 2009, 8:00pm UTC](https://www.ruby-forum.com/t/cannot-activate-feedtools-gem-due-to-frozen-rails-install/160916/2 "2009-02-21T20:00:54Z")

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This is a known issue with the 2.1 series - see  
[http://rails.lighthouseapp.com:80/projects/8994/tickets/1107](http://rails.lighthouseapp.com:80/projects/8994/tickets/1107)  
for details. If at all possible, I’d recommend that you upgrade to  
2.2, which  
fixes the issue.

–Matt J.

On Feb 20, 4:14 pm, Roman R. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

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<div class="post-metadata">

**Author:** ![rroman81](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bc8723/32.png) [@rroman81](https://www.ruby-forum.com/u/rroman81)\
**Post date:** [February 24, 2009, 11:39pm UTC](https://www.ruby-forum.com/t/cannot-activate-feedtools-gem-due-to-frozen-rails-install/160916/3 "2009-02-24T23:39:42Z")

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Matt J. wrote:

> This is a known issue with the 2.1 series - see  
> [#1107 Vendor'd rails gems can't be "depended" - Ruby on Rails - rails](http://rails.lighthouseapp.com:80/projects/8994/tickets/1107)  
> for details. If at all possible, I’d recommend that you upgrade to  
> 2.2, which  
> fixes the issue.
> 
> –Matt J.
> 
> On Feb 20, 4:14�pm, Roman R. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

Thank you for the info. That certainly helps.