# "uninitialized constant ActiveSupport" when running "rake db:migrate:reset" after including my own d

**URL:** <https://www.ruby-forum.com/t/uninitialized-constant-activesupport-when-running-rake-dbreset-after-including-my-own-d/136645>\
**Category:** Rails\
**Created:** [May 5, 2008, 3:44am UTC](https://www.ruby-forum.com/t/uninitialized-constant-activesupport-when-running-rake-dbreset-after-including-my-own-d/136645 "2008-05-05T03:44:28Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![greg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/71c47a/32.png) [@greg](https://www.ruby-forum.com/u/greg)\
**Post date:** [May 5, 2008, 3:44am UTC](https://www.ruby-forum.com/t/uninitialized-constant-activesupport-when-running-rake-dbreset-after-including-my-own-d/136645/1 "2008-05-05T03:44:28Z")

</div>

Hi,  
When I include this line in my environment.rb file my Rails app works as  
expected, HOWEVER using “rake:db:reset” then does not work after this???

# "ActiveSupport::CoreExtensions:📅:Conversions::DATE\_FORMATS[:default]

“%d/%m/%Y”

The rake exception that gets thrown is below. Any ideas re how to get  
rake  
working as obviously I want to be able to keep my own default date  
format?

rake aborted!  
uninitialized constant ActiveSupport  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:2237:in  
`const_missing' /Volumes/USBOPEN/myApp/config/environment.rb:65 /opt/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/initializer.rb:47:in`run’  
/Volumes/USBOPEN/myApp/config/environment.rb:16  
/opt/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require' /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’  
/opt/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/tasks/misc.rake:3  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:546:in `call' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:546:in`execute’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:541:in `each' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:541:in`execute’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:508:in  
`invoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in`synchronize’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in  
`invoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:518:in`invoke\_prerequisites’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1183:in `each' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1183:in`send’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1183:in `each' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:515:in`invoke\_prerequisites’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:507:in  
`invoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in`synchronize’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in  
`invoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:518:in`invoke\_prerequisites’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1183:in `each' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1183:in`send’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1183:in `each' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:515:in`invoke\_prerequisites’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:507:in  
`invoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in`synchronize’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in  
`invoke_with_call_chain' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:494:in`invoke’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1931:in  
`invoke_task' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in`top\_level’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in `each' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in`top\_level’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1948:in  
`standard_exception_handling' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1903:in`top\_level’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1881:in `run' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1948:in`standard\_exception\_handling’  
/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:1878:in `run' /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/bin/rake:31 /opt/local/bin/rake:19:in`load’  
/opt/local/bin/rake:19  
\*\* Invoke db:migrate:reset (first\_time)  
\*\* Invoke db:drop (first\_time)  
\*\* Invoke environment (first\_time)  
\*\* Execute environment

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<div class="post-metadata">

**Author:** ![greg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/71c47a/32.png) [@greg](https://www.ruby-forum.com/u/greg)\
**Post date:** [May 5, 2008, 3:51am UTC](https://www.ruby-forum.com/t/uninitialized-constant-activesupport-when-running-rake-dbreset-after-including-my-own-d/136645/2 "2008-05-05T03:51:14Z")

</div>

Greg H. wrote:

> # "ActiveSupport::CoreExtensions:📅:Conversions::DATE\_FORMATS[:default]
> 
> “%d/%m/%Y”

> rake aborted!  
> uninitialized constant ActiveSupport  
> /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake.rb:2237:in  
> `const\_missing’  
> /Volumes/USBOPEN/myApp/config/environment.rb:65

looks like you’ve put the ActiveSupport line inside the  
Rails::Initializer.run block.

you need to put it at the end of your environment.rb file,  
else ActiveSupport hasn’t yet been loaded…  
hence the exception it raises.