# Question about Rake

**URL:** <https://www.ruby-forum.com/t/question-about-rake/91241>\
**Category:** Rails\
**Created:** [April 5, 2007, 11:12pm UTC](https://www.ruby-forum.com/t/question-about-rake/91241 "2007-04-05T23:12:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jtoy](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/f475e1/32.png) [@jtoy](https://www.ruby-forum.com/u/jtoy)\
**Post date:** [April 5, 2007, 11:12pm UTC](https://www.ruby-forum.com/t/question-about-rake/91241/1 "2007-04-05T23:12:04Z")

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Hello,

How does Rake determine the list of tasks that Rake can execute?, in a  
Rails development environment. My problem has to do with the rake tasks  
that are provided by the Engines plugin (at least thats my current  
understanding that  
the Engines plugin provides additional Rake tasks that help manage  
vendor plugins).

I’ve installed the latest version of the Engines plugin and I’m running  
Rails v1.2.3 yet none of the Engines plugin, rake tasks are available.  
IE: I get: “do not know how to build task …” when I run rake  
db:migrate:engines and the output from rake -T does not show any of the  
Engines plugin, rake tasks.

script/plugins list --local  
… shows that the Engines plugin is installed.

I’m sure I’m missing something?

Thanks in advance,

Jason

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<div class="post-metadata">

**Author:** ![jtoy](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/f475e1/32.png) [@jtoy](https://www.ruby-forum.com/u/jtoy)\
**Post date:** [April 5, 2007, 11:55pm UTC](https://www.ruby-forum.com/t/question-about-rake/91241/2 "2007-04-05T23:55:47Z")

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You may be referring to documentation about the plugin that is out of  
date - the 1.2 release of the engines plugin doesn’t include the  
“db:migrate:engines” task, for example. See the README and UPGRADING  
files for more information.

- James

On Apr 5, 10:12 pm, Jason T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

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<div class="post-metadata">

**Author:** ![jtoy](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/f475e1/32.png) [@jtoy](https://www.ruby-forum.com/u/jtoy)\
**Post date:** [April 7, 2007, 3:38pm UTC](https://www.ruby-forum.com/t/question-about-rake/91241/3 "2007-04-07T15:38:53Z")

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James A. wrote:

> You may be referring to documentation about the plugin that is out of  
> date - the 1.2 release of the engines plugin doesn’t include the  
> “db:migrate:engines” task, for example. See the README and UPGRADING  
> files for more information.
> 
> - James
> 
> On Apr 5, 10:12 pm, Jason T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

OK thanks that cleared it up.

Appreciate the response,

Jason