[ruby-list:43756] Cygwin 上での Rails 環境構築

小波です。

Windows上で Rails を実験するのに InstantRails や　Knoppix を使った
ものを扱ってきたのですが，次の記事を読んで，自分も Cygwin
上で環境を作ろうと思い立ちました。
http://kuee.org/mt/2007/05/eclipse_rubycygwin_radrails.html

Ruby, Rails, Mysql のバージョンは以下の通りです。
> ruby --version
ruby 1.8.4 (2005-12-24) [i386-cygwin]
> rails --version
Rails 1.2.3
> mysql -u root
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.0.45-community-nt MySQL Community Edition (GPL)

この状態で 
> rails bbs
> cd bbs
> .script/generate model Comment
とした後， db/migrate/001_create_comments.rb を編集し，
> rake db:migrate
を実行したところで次のメッセージを出してこけました。

rake aborted!
uninitialized constant ActiveRecord::Base::Mysql

このへんでかなりお手上げモードになってしまいました。もしも
解決のためのポインタでも示していただけたら幸いです。なお，
rake で --trace オプションを付けて得られたログは下の通りで
す。

-------------------------------------------------------
rake aborted!
uninitialized constant ActiveRecord::Base::Mysql
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:477:in `const_missing'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/mysql_adapter.rb:78:in `mysql_connection'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:262:in `connection_without_query_cache='
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/query_cache.rb:54:in `connection='
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:230:in `retrieve_connection'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:78:in `connection'
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/migration.rb:284:in `migrate'
/usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/tasks/databases.rake:4
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:392:in `execute'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:392:in `execute'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:362:in `invoke'
/usr/local/lib/ruby/1.8/thread.rb:135:in `synchronize'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:355:in `invoke'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1739:in `top_level'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1739:in `top_level'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1761:in `standard_exception_handling'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1733:in `top_level'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1711:in `run'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1761:in `standard_exception_handling'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1708:in `run'
/usr/local/lib/ruby/gems/1.8/gems/rake-0.7.3/bin/rake:7
/usr/local/bin/rake:16
(in /cygdrive/c/home/RadRails/bbs)
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:migrate