# Undefined method \`eq' for nil:NilClass **URL:** \ **Category:** Rails\ **Created:** [September 6, 2010, 4:39pm UTC](https://www.ruby-forum.com/t/undefined-method-eq-for-nil-nilclass/194498 "2010-09-06T16:39:49Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![PalaniKannan\_K](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/eb8c5e/32.png) [@PalaniKannan\_K](https://www.ruby-forum.com/u/PalaniKannan_K)\ **Post date:** [September 6, 2010, 4:39pm UTC](https://www.ruby-forum.com/t/undefined-method-eq-for-nil-nilclass/194498/1 "2010-09-06T16:39:49Z")
Hi, Please help in this regard I got the error when tried to apply the script for sql command “SELECT \* FROM clients WHERE (clients.id = 10)” Taxa = Model Name I used “taxa = Taxa.find(40)” in ActiveRecord::Base… I got the trace as undefined method `eq’ for nil:NilClass activesupport (3.0.0) lib/active\_support/whiny\_nil.rb:48:in `method\_missing’ activerecord (3.0.0) lib/active\_record/relation/finder\_methods.rb:291:in `find_one' activerecord (3.0.0) lib/active_record/relation/finder_methods.rb:281:in`find\_with\_ids’ activerecord (3.0.0) lib/active\_record/relation/finder\_methods.rb:107:in `find' activerecord (3.0.0) lib/active_record/base.rb:439:in`find’ app/models/taxa.rb:2:in `' app/models/taxa.rb:1:in`\’ activesupport (3.0.0) lib/active\_support/dependencies.rb:454:in `load' activesupport (3.0.0) lib/active_support/dependencies.rb:454:in`block in load\_file’ activesupport (3.0.0) lib/active\_support/dependencies.rb:591:in `new_constants_in' activesupport (3.0.0) lib/active_support/dependencies.rb:453:in`load\_file’ activesupport (3.0.0) lib/active\_support/dependencies.rb:340:in `require_or_load' activesupport (3.0.0) lib/active_support/dependencies.rb:491:in`load\_missing\_constant’ activesupport (3.0.0) lib/active\_support/dependencies.rb:183:in `block in const_missing' activesupport (3.0.0) lib/active_support/dependencies.rb:181:in`each’ activesupport (3.0.0) lib/active\_support/dependencies.rb:181:in `const_missing' activesupport (3.0.0) lib/active_support/dependencies.rb:503:in`load\_missing\_constant’ activesupport (3.0.0) lib/active\_support/dependencies.rb:183:in `block in const_missing' activesupport (3.0.0) lib/active_support/dependencies.rb:181:in`each’ activesupport (3.0.0) lib/active\_support/dependencies.rb:181:in `const_missing' app/controllers/taxas_controller.rb:5:in`index’ actionpack (3.0.0) lib/action\_controller/metal/implicit\_render.rb:4:in `send_action' actionpack (3.0.0) lib/abstract_controller/base.rb:150:in`process\_action’ actionpack (3.0.0) lib/action\_controller/metal/rendering.rb:11:in `process_action' actionpack (3.0.0) lib/abstract_controller/callbacks.rb:18:in`block in process\_action’ activesupport (3.0.0) lib/active\_support/callbacks.rb:435:in `_run __2427101748358611573__ process_action __3945483506732757257__ callbacks' activesupport (3.0.0) lib/active_support/callbacks.rb:409:in`\_run\_process\_action\_callbacks’ activesupport (3.0.0) lib/active\_support/callbacks.rb:93:in `run_callbacks' actionpack (3.0.0) lib/abstract_controller/callbacks.rb:17:in`process\_action’ actionpack (3.0.0) lib/action\_controller/metal/instrumentation.rb:30:in `block in process_action' activesupport (3.0.0) lib/active_support/notifications.rb:52:in`block in instrument’ activesupport (3.0.0) lib/active\_support/notifications/instrumenter.rb:21:in `instrument' activesupport (3.0.0) lib/active_support/notifications.rb:52:in`instrument’ actionpack (3.0.0) lib/action\_controller/metal/instrumentation.rb:29:in `process_action' actionpack (3.0.0) lib/action_controller/metal/rescue.rb:17:in`process\_action’ actionpack (3.0.0) lib/abstract\_controller/base.rb:119:in `process' actionpack (3.0.0) lib/abstract_controller/rendering.rb:40:in`process’ actionpack (3.0.0) lib/action\_controller/metal.rb:133:in `dispatch' actionpack (3.0.0) lib/action_controller/metal/rack_delegation.rb:14:in`dispatch’ actionpack (3.0.0) lib/action\_controller/metal.rb:173:in `block in action' actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in`call’ actionpack (3.0.0) lib/action\_dispatch/routing/route\_set.rb:62:in `dispatch' actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:27:in`call’ rack-mount (0.6.13) lib/rack/mount/route\_set.rb:148:in `block in call' rack-mount (0.6.13) lib/rack/mount/code_generation.rb:93:in`block in recognize’ rack-mount (0.6.13) lib/rack/mount/code\_generation.rb:68:in `optimized_each' rack-mount (0.6.13) lib/rack/mount/code_generation.rb:92:in`recognize’ rack-mount (0.6.13) lib/rack/mount/route\_set.rb:139:in `call' actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:492:in`call’ actionpack (3.0.0) lib/action\_dispatch/middleware/best\_standards\_support.rb:17:in `call' actionpack (3.0.0) lib/action_dispatch/middleware/head.rb:14:in`call’ rack (1.2.1) lib/rack/methodoverride.rb:24:in `call' actionpack (3.0.0) lib/action_dispatch/middleware/params_parser.rb:21:in`call’ actionpack (3.0.0) lib/action\_dispatch/middleware/flash.rb:182:in `call' actionpack (3.0.0) lib/action_dispatch/middleware/session/abstract_store.rb:149:in`call’ actionpack (3.0.0) lib/action\_dispatch/middleware/cookies.rb:287:in `call' activerecord (3.0.0) lib/active_record/query_cache.rb:32:in`block in call’ activerecord (3.0.0) lib/active\_record/connection\_adapters/abstract/query\_cache.rb:28:in `cache' activerecord (3.0.0) lib/active_record/query_cache.rb:12:in`cache’ activerecord (3.0.0) lib/active\_record/query\_cache.rb:31:in `call' activerecord (3.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:355:in`call’ actionpack (3.0.0) lib/action\_dispatch/middleware/callbacks.rb:46:in `block in call' activesupport (3.0.0) lib/active_support/callbacks.rb:415:in`\_run\_call\_callbacks’ actionpack (3.0.0) lib/action\_dispatch/middleware/callbacks.rb:44:in `call' rack (1.2.1) lib/rack/sendfile.rb:107:in`call’ actionpack (3.0.0) lib/action\_dispatch/middleware/remote\_ip.rb:48:in `call' actionpack (3.0.0) lib/action_dispatch/middleware/show_exceptions.rb:46:in`call’ railties (3.0.0) lib/rails/rack/logger.rb:13:in `call' rack (1.2.1) lib/rack/runtime.rb:17:in`call’ activesupport (3.0.0) lib/active\_support/cache/strategy/local\_cache.rb:72:in `call' rack (1.2.1) lib/rack/lock.rb:11:in`block in call’ internal:prelude:10:in `synchronize' rack (1.2.1) lib/rack/lock.rb:11:in`call’ actionpack (3.0.0) lib/action\_dispatch/middleware/static.rb:30:in `call' railties (3.0.0) lib/rails/application.rb:168:in`call’ railties (3.0.0) lib/rails/application.rb:77:in `method_missing' railties (3.0.0) lib/rails/rack/log_tailer.rb:14:in`call’ rack (1.2.1) lib/rack/content\_length.rb:13:in `call' rack (1.2.1) lib/rack/handler/webrick.rb:52:in`service’ /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service' /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in`run’ /usr/local/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start\_thread’ – With Advance Thanks, Palani Kannan. K