# Uninitialized constant CreateDatabase

**URL:** <https://www.ruby-forum.com/t/uninitialized-constant-createdatabase/119051>\
**Category:** Rails\
**Created:** [November 2, 2007, 4:38pm UTC](https://www.ruby-forum.com/t/uninitialized-constant-createdatabase/119051 "2007-11-02T16:38:16Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![verifier](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/e480ec/32.png) [@verifier](https://www.ruby-forum.com/u/verifier)\
**Post date:** [November 2, 2007, 4:38pm UTC](https://www.ruby-forum.com/t/uninitialized-constant-createdatabase/119051/1 "2007-11-02T16:38:16Z")

</div>

I’m trying to run db:migrate and get the error below.  
What’s wrong?

(in C:/projects/rails/admin)  
\*\* Invoke db:migrate (first\_time)  
\*\* Invoke environment (first\_time)  
\*\* Execute environment  
\*\* Execute db:migrate  
rake aborted!  
uninitialized constant CreateDatabase  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active\_support/dependencies.rb:266:in  
`load_missing_constant' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:452:in`const\_missing’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active\_support/dependencies.rb:464:in  
`const_missing' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/inflector.rb:250:in`constantize’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active\_support/core\_ext/string/inflections.rb:148:in  
`constantize' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/migration.rb:366:in`migration\_class’  
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active\_record/migration.rb:346:in  
`migration_classes' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract_adapter.rb:128:in`inject’  
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active\_record/migration.rb:342:in  
`each' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/migration.rb:342:in`inject’  
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active\_record/migration.rb:342:in  
`migration_classes' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/migration.rb:330:in`migrate’  
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active\_record/migration.rb:297:in  
`up' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/migration.rb:288:in`migrate’  
c:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/tasks/databases.rake:4  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:392:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:392:in`execute’  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:392:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:392:in`execute’  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:362:in `invoke' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:355:in`synchronize’  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:355:in `invoke' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1739:in`top\_level’  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1739:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1739:in`top\_level’  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1761:in  
`standard_exception_handling' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1733:in`top\_level’  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1711:in `run' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1761:in`standard\_exception\_handling’  
c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1708:in `run' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.7.3/bin/rake:7 c:\ruby\bin\rake:16:in`load’  
c:\ruby\bin\rake:16  
-e:3:in `load’  
-e:3