Cannot generate controller/scaffold after installing active_scaffold plugin

script/generate controller admin

c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/ core_ext/module/aliasing.rb:33:in `alias_method': undefined method `find_full_template_path' for class `ActionView::Base' (NameError)   from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/ active_support/core_ext/module/aliasing.rb:33:in `alias_method_chain'   from C:/Documents and Settings/Sultan/My Documents/Aptana Studio/ depot/vendor/plugins/active_scaffold/lib/extensions/ generic_view_paths.rb:33   from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'   from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'   from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/ active_support/dependencies.rb:156:in `require'   from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/ active_support/dependencies.rb:521:in `new_constants_in'   from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/ active_support/dependencies.rb:156:in `require'   from C:/Documents and Settings/Sultan/My Documents/Aptana Studio/ depot/vendor/plugins/active_scaffold/environment.rb:63    ... 22 levels...   from c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/commands/ generate.rb:1   from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'   from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'   from C:/Documents and Settings/Sultan/My Documents/Aptana Studio/ depot/script/generate:3

works now. Downloaded from: http://github.com/activescaffold/active_scaffold/tree/master