Uninitialized class variable @@env in OCI8

Rails
1

Can someone help me with this error?

Started GET “/comics” for 3.134.140.40 at 2011-06-16 09:33:12 -0400
Processing by ComicsController#index as HTML
←[1m←[35mComic Load (2.0ms)←[0m SELECT comics.* FROM comics
Rendered comics/index.html.erb within layouts/application (1.0ms)
Completed 500 Internal Server Error in 25ms

ActionView::Template::Error (uninitialized class variable @@env in
OCI8):
12:
13: <% @comics.each do |comic| %>
14:


15: <%= comic.title %>
16: <%= comic.issue %>
17: <%= comic.publisher %>
18: <%= link_to ‘Show’, comic %>
app/views/comics/index.html.erb:15:in block in _app_views_comics_index_html_erb__444977452_38484516__909189289' app/views/comics/index.html.erb:13:ineach’
app/views/comics/index.html.erb:13:in
_app_views_comics_index_html_erb__444977452_38484516__909189289' app/controllers/comics_controller.rb:7:inindex’

Rendered D:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.8/lib/
action_dispatch/middleware/templates/rescues/_trace.erb (1.0ms)
Rendered D:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.8/lib/
action_dispatch/middleware/templates/rescues/_request_and_response.erb
(95.1ms)
Rendered D:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.8/lib/
action_dispatch/middleware/templates/rescues/template_error.erb within
rescues/layout (145.1ms