ActiveScaffoldをインストールしたらアプリケーションが起動しない

昨日、ActiveScaffoldをインストールしたらアプリケーションが起動しなくなった。
アプリケーションを起動すると下記のようなエラーになってしまう。

=> Booting Mongrel (use 'script/server webrick' to force WEBrick)
=> Rails 2.1.0 application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
** Starting Mongrel listening at 0.0.0.0:3000
** Starting Rails with development environment...
Exiting
/Library/Ruby/Gems/1.8/gems/activesupport-2.1.0/lib/active_support/core_ext/module/aliasing.rb:31:in `alias_method': undefined method `find_full_template_path' for class `ActionView::Base' (NameError)
        from /Library/Ruby/Gems/1.8/gems/activesupport-2.1.0/lib/active_support/core_ext/module/aliasing.rb:31:in `alias_method_chain'
        from /Users/kuru/NetBeansProjects/atotok/atotok_app/vendor/plugins/active_scaffold/lib/extensions/generic_view_paths.rb:33
        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
        from /Library/Ruby/Gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in `require'
        from /Library/Ruby/Gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:354:in `new_constants_in'
        from /Library/Ruby/Gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in `require'
        from /Users/kuru/NetBeansProjects/atotok/atotok_app/vendor/plugins/active_scaffold/environment.rb:63
         ... 46 levels...
        from /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/commands/server.rb:39
        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
        from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
        from script/server:3

ネットで調べてみるとRails2.1には対応していないようなことが書いてあるので
取りあえずアンインストール。
また、そのうち試してみよう。