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Home/ Questions/Q 166341
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Editorial Team
Asked: May 11, 20262026-05-11T12:04:51+00:00 2026-05-11T12:04:51+00:00

I followed the instructions found on the github page exactly. I would post some

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I followed the instructions found on the github page exactly. I would post some of my configuration but it matches what’s found here on http://github.com/nkallen/cache-money/tree/master

The error reads as follows:

/!\ FAILSAFE /!\  Thu Mar 05 16:45:09 -0500 2009   Status: 500 Internal Server Error   undefined method `indices' for nil:NilClass     (__DELEGATION__):2:in `__send__'     (__DELEGATION__):2:in `indices'     (__DELEGATION__):2:in `__send__'     (__DELEGATION__):2:in `indices'     /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:114:in `indexed_on?'     /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:56:in `cacheable?'     /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:15:in `perform'     /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:7:in `perform'     /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/finders.rb:24:in `find_every'     /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/base.rb:1452:in `find_initial'     /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/base.rb:587:in `find'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/session/active_record_store.rb:113:in `find_by_session_id'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/session/active_record_store.rb:79:in `find_by_session_id'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/session/active_record_store.rb:288:in `initialize'     /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/base.rb:1398:in `silence'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/session/active_record_store.rb:288:in `initialize'     /usr/lib/ruby/1.8/cgi/session.rb:279:in `new'     /usr/lib/ruby/1.8/cgi/session.rb:279:in `initialize_without_cgi_reader'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/cgi_ext/session.rb:19:in `initialize'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/cgi_process.rb:94:in `new'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/cgi_process.rb:94:in `session'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/cgi_process.rb:130:in `stale_session_check!'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/cgi_process.rb:78:in `session'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/base.rb:1205:in `assign_shortcuts_without_flash'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/flash.rb:166:in `assign_shortcuts'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/base.rb:519:in `process_without_filters'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/filters.rb:606:in `process_without_session_management_support'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/session_management.rb:134:in `process'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/base.rb:392:in `process'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:183:in `handle_request'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:123:in `dispatch'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:122:in `synchronize'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:122:in `dispatch'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'     /usr/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:39:in `dispatch'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:76:in `process'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `synchronize'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `process'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:282:in `run'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `each'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `run'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:128:in `run'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/command.rb:212:in `run'     /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281     /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:142:in `load_without_new_constant_marking'     /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:142:in `load'     /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'     /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:142:in `load'     /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/servers/mongrel.rb:64     /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'     /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'     /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'     /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'     /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'     /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/commands/server.rb:49     /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'     /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'     script/server:3 

Any ideas? Thanks.

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  1. 2026-05-11T12:04:52+00:00Added an answer on May 11, 2026 at 12:04 pm

    the cache-money initializer in config/initializers/cache_money.rb seems to need the session_store as mem_cache_store

    for me it works like this:

    config/environment.rb:

    config.action_controller.session_store = :mem_cache_store 

    config/environments/production.rb:

    config.after_initialize do   ActionController::Base.session_store = :active_record_store end 
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