Mine

ActionView::TemplateError (/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:100:in `const_missing': uninitialized constant Restaurant) on line #41 of app/views/main/index/index.rhtml:
38: <%
39:   @reviews_10_recent = Review.find(:all, :order =>  'reviews.updated_at desc', :limit => 10)
40:   for review in @reviews_10_recent
41:     restaurant = review.restaurant
42: %>
43: <%= link_to restaurant.name, :controller => 'restaurant', :action => 'show_review', :id => review.id %><br/>
44: <% end %>

    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/base.rb:1246:in `compute_type'
    /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:131:in `const_missing'
    /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:133:in `const_missing'
    (eval):1:in `compute_type'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/reflection.rb:112:in `klass'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/associations/belongs_to_association.rb:44:in `find_target'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/associations/association_proxy.rb:116:in `load_target'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/associations/association_proxy.rb:42:in `reload'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/associations.rb:833:in `restaurant'
    #{RAILS_ROOT}/app/views/main/index/index.rhtml:41:in `_run_rhtml_main_index_index'
    #{RAILS_ROOT}/app/views/main/index/index.rhtml:40:in `_run_rhtml_main_index_index'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in `compile_and_render_template'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in `render_template'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:in `render_file'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:726:in `render_file'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:648:in `render_with_no_layout'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/layout.rb:245:in `render_without_benchmark'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:53:in `render'
    /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:53:in `render'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:942:in `perform_action_without_filters'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:368:in `perform_action_without_benchmark'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in `perform_action_without_rescue'
    /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in `perform_action_without_rescue'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/rescue.rb:82:in `perform_action'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:408:in `process_without_filters'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:377:in `process_without_session_management_support'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/session_management.rb:117:in `process'
    /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in `dispatch'
    /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:115:in `handle_dispatch'
    /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:81:in `service'
    /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
    /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
    /usr/local/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
    /usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
    /usr/local/lib/ruby/1.8/webrick/server.rb:95:in `start'
    /usr/local/lib/ruby/1.8/webrick/server.rb:92:in `start'
    /usr/local/lib/ruby/1.8/webrick/server.rb:23:in `start'
    /usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start'
    /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:67:in `dispatch'
    /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/servers/webrick.rb:59
    /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
    /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in `require'
    /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/server.rb:30
    /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
    /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in `require'
    script/server:3


Rendering /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/templates/rescues/layout.rhtml (500 Internal Error)