我必须修复一个旧 Rails 2.3.8 项目的错误，并且在加载开发环境时遇到了麻烦。
我已将项目转换为使用捆绑程序，这是我的 Gemfile：
source :gemcutter
gem "rails", "2.3.8"
gem "pg"
gem 'rdoc'
gem "haml"
gem "will_paginate", '~> 2.3.11'
# RESTful ACL support.
gem "restful_acl", "3.0.4"
# awesome nested set for sub categories
gem "awesome_nested_set", "< 2.0"
# rspec tests
gem 'machinist', "< 2.0"
gem "rspec", "1.3.0"
gem "rspec-rails", "1.3.2"
gem "test-unit"
# Deployment
gem "capistrano"
当我使用“脚本/服务器”启动服务器并加载网站时，出现以下错误
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/psych.rb:203:in `parse'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/psych.rb:203:in `parse_stream'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/psych.rb:151:in `parse'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/psych.rb:127:in `load'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n/backend/base.rb:244:in `load_yml'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n/backend/base.rb:231:in `load_file'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n/backend/base.rb:18:in `block in load_translations'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n/backend/base.rb:18:in `each'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n/backend/base.rb:18:in `load_translations'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n/backend/base.rb:98:in `init_translations'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n/backend/base.rb:84:in `available_locales'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n.rb:54:in `available_locales'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/vendor/i18n-0.3.7/i18n.rb:118:in `available_locales'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/template.rb:226:in `valid_locale?'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/template.rb:243:in `parse_extensions'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/template.rb:233:in `split'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/template.rb:118:in `initialize'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/reloadable_template.rb:81:in `initialize'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/reloadable_template.rb:38:in `new'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/reloadable_template.rb:38:in `register_template_from_file'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/reloadable_template.rb:62:in `block in load_all_templates_from_dir'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/reloadable_template.rb:62:in `each'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/reloadable_template.rb:62:in `load_all_templates_from_dir'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/reloadable_template.rb:29:in `[]'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/paths.rb:48:in `block in find_template'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/paths.rb:47:in `each'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_view/paths.rb:47:in `find_template'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/base.rb:1389:in `default_template'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/base.rb:896:in `render'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:51:in `block in render_with_benchmark'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/base.rb:1326:in `default_render'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/base.rb:1332:in `perform_action'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/filters.rb:617:in `call_filters'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/filters.rb:610:in `perform_action_with_filters'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `block in perform_action_with_benchmark'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/rescue.rb:160:in `perform_action_with_rescue'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/flash.rb:151:in `perform_action_with_flash'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/base.rb:532:in `process'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/filters.rb:606:in `process_with_filters'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/base.rb:391:in `process'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/base.rb:386:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/routing/route_set.rb:438:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:87:in `dispatch'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:121:in `_call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:130:in `block in build_middleware_stack'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:29:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:29:in `block in call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:9:in `cache'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:28:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/string_coercion.rb:25:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/head.rb:9:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/methodoverride.rb:24:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/params_parser.rb:15:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/session/cookie_store.rb:99:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/failsafe.rb:26:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/lock.rb:11:in `block in call'
<internal:prelude>:10:in `synchronize'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/lock.rb:11:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:114:in `block in call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/reloader.rb:34:in `run'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:108:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rails-2.3.8/lib/rails/rack/static.rb:31:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/urlmap.rb:47:in `block in call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/urlmap.rb:41:in `each'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/urlmap.rb:41:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rails-2.3.8/lib/rails/rack/log_tailer.rb:17:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/content_length.rb:13:in `call'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/rack-1.1.5/lib/rack/handler/webrick.rb:48:in `service'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/home/map7/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
我试过重新标记会话控制器，但它不会改变错误。