# Superclass Error in 0.80 Install

**URL:** <https://www.ruby-forum.com/t/superclass-error-in-0-80-install/170570>\
**Category:** Radiant CMS\
**Created:** [June 19, 2009, 5:42am UTC](https://www.ruby-forum.com/t/superclass-error-in-0-80-install/170570 "2009-06-19T05:42:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![glenatron](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/94ad74/32.png) [@glenatron](https://www.ruby-forum.com/u/glenatron)\
**Post date:** [June 19, 2009, 5:42am UTC](https://www.ruby-forum.com/t/superclass-error-in-0-80-install/170570/1 "2009-06-19T05:42:43Z")

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I’m upgrading from 0.7.1. And following the unstructions on the blog, I  
ran

gem install radiant  
rake radiant:update

but then…

rake production db:migrate

gives an error:

[ps7899]$ rake production db:migrate --trace  
(in /home/)  
\*\* Invoke production (first\_time)  
\*\* Execute production  
\*\* Invoke environment (first\_time)  
\*\* Execute environment  
rake aborted!  
super: no superclass method `require' /home/.gems/gems/radiant-0.8.0/vendor/rails/activesupport/lib/active_support/dependencies.rb:158:in`require’

Does anybody know the cause?

Cheers,

Ben

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<div class="post-metadata">

**Author:** ![glenatron](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/94ad74/32.png) [@glenatron](https://www.ruby-forum.com/u/glenatron)\
**Post date:** [June 19, 2009, 5:58am UTC](https://www.ruby-forum.com/t/superclass-error-in-0-80-install/170570/2 "2009-06-19T05:58:58Z")

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Ben M. wrote:

> I’m upgrading from 0.7.1. And following the unstructions on the blog, I  
> ran

Sorry for the typos; it seems that I rushed that last message a bit.

Should have been:

\*instructions  
\*Radiant 0.8.0

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<div class="post-metadata">

**Author:** ![glenatron](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/94ad74/32.png) [@glenatron](https://www.ruby-forum.com/u/glenatron)\
**Post date:** [June 22, 2009, 8:08am UTC](https://www.ruby-forum.com/t/superclass-error-in-0-80-install/170570/3 "2009-06-22T08:08:53Z")

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Ben M. wrote:

> rake production db:migrate
> 
> gives an error:
> 
> [ps7899]$ rake production db:migrate --trace  
> (in /home/)  
> \*\* Invoke production (first\_time)  
> \*\* Execute production  
> \*\* Invoke environment (first\_time)  
> \*\* Execute environment  
> rake aborted!  
> super: no superclass method `require’

The problem was in my HAML plugin.

Here is the fix:  
[http://wallerdev.com/2008/07/30/no-superclass-method-require](http://wallerdev.com/2008/07/30/no-superclass-method-require)