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