# "uninitialized constant Engines" - rake docs:plugins problem

**URL:** <https://www.ruby-forum.com/t/uninitialized-constant-engines-rake-docs-plugins-problem/179358>\
**Category:** Rails\
**Created:** [November 23, 2009, 11:37am UTC](https://www.ruby-forum.com/t/uninitialized-constant-engines-rake-docs-plugins-problem/179358 "2009-11-23T11:37:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cmaxvv](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/85f322/32.png) [@cmaxvv](https://www.ruby-forum.com/u/cmaxvv)\
**Post date:** [November 23, 2009, 11:37am UTC](https://www.ruby-forum.com/t/uninitialized-constant-engines-rake-docs-plugins-problem/179358/1 "2009-11-23T11:37:54Z")

</div>

hey. I recently reinstalled ubuntu (and therefore ruby, rails and all  
my gems etc). For the first time since i reinstalled i tried to  
generate some rdocs and got this error:

max@max-laptop:~/work/e\_learning\_resource/trunk$ rake doc:plugins  
–trace  
(in /home/max/work/e\_learning\_resource/trunk)  
\*\* Invoke doc:plugins (first\_time)  
\*\* Invoke doc:plugins:savage\_beast (first\_time)  
\*\* Execute doc:plugins:savage\_beast  
rake aborted!  
uninitialized constant Engines  
/var/lib/gems/1.8/gems/activesupport-2.2.2/lib/active\_support/dependencies.rb:445:in  
`load_missing_constant' /var/lib/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:77:in`const\_missing’  
/var/lib/gems/1.8/gems/activesupport-2.2.2/lib/active\_support/dependencies.rb:89:in  
`const_missing' /home/max/work/e_learning_resource/trunk/vendor/plugins/savage_beast/tested_plugins/engines/tasks/engines.rake:72 /usr/lib/ruby/1.8/rake.rb:617:in`call’  
/usr/lib/ruby/1.8/rake.rb:617:in `execute' /usr/lib/ruby/1.8/rake.rb:612:in`each’

…

It looks like it’s balking on the savage\_beast plugin, which uses  
Engines, but the plugin itself seems to work fine within my app. Any  
advice anyone?

thanks, max