# RMagick load problems? **URL:** \ **Category:** Rails\ **Created:** [November 20, 2006, 6:28pm UTC](https://www.ruby-forum.com/t/rmagick-load-problems/76722 "2006-11-20T18:28:28Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![chas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@chas](https://www.ruby-forum.com/u/chas)\ **Post date:** [November 20, 2006, 6:28pm UTC](https://www.ruby-forum.com/t/rmagick-load-problems/76722/1 "2006-11-20T18:28:28Z")
I have a page (model: daily\_progress\_chart) that uses RMagick and ImageMagick to create a chart using RVG. A few days ago (after some updates to Rails), this chart stopped working on both my development machine (MacBook Pro) and the production server (Gentoo Linux). I get the following error messages. I am totally lost, but I assume that there is a problem with RMagick. Any ideas anyone? On the MacBook: (Note that “parent\_of?” _is_ defined and was working fine until I went to this page. As soon as I try to generate a chart (even a blank one), a lot of things seem to get disconnected and suddenly instance methods that were working fine on another page don’t work at all. Also, mongrel hangs when I try to reboot it, taking over a minute to restart.) From the development log: NoMethodError (undefined method `parent_of?' for #): /vendor/rails/activerecord/lib/active_record/base.rb:1847:in`method\_missing’ /app/models/project.rb:59:in `parent_of?' /vendor/rails/activerecord/lib/active_record/associations/association_proxy.rb:127:in`each’ /vendor/rails/activerecord/lib/active\_record/associations/association\_proxy.rb:127:in `send' /vendor/rails/activerecord/lib/active_record/associations/association_proxy.rb:127:in`method\_missing’ /vendor/rails/activerecord/lib/active\_record/associations/has\_many\_association.rb:98:in `method_missing' /app/models/project.rb:55:in`parent\_of?’ /app/models/project.rb:66:in `parent_or_self?' /vendor/rails/activerecord/lib/active_record/associations/association_proxy.rb:127:in`send’ /vendor/rails/activerecord/lib/active\_record/associations/association\_proxy.rb:127:in `method_missing' /app/models/user.rb:90:in`member\_of?’ /vendor/rails/activerecord/lib/active\_record/associations/association\_proxy.rb:127:in `each' /vendor/rails/activerecord/lib/active_record/associations/association_proxy.rb:127:in`send’ /vendor/rails/activerecord/lib/active\_record/associations/association\_proxy.rb:127:in `method_missing' /vendor/rails/activerecord/lib/active_record/associations/has_and_belongs_to_many_association.rb:91:in`method\_missing’ /app/models/user.rb:89:in `member_of?' /app/controllers/application.rb:25:in`set\_organization’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:456:in `send' /vendor/rails/actionpack/lib/action_controller/filters.rb:456:in`call’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:435:in `call' /vendor/rails/actionpack/lib/action_controller/filters.rb:640:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:637:in `call_filter' /vendor/rails/actionpack/lib/action_controller/filters.rb:641:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:438:in `call' /vendor/rails/actionpack/lib/action_controller/filters.rb:640:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:641:in `call_filter' /vendor/rails/actionpack/lib/action_controller/filters.rb:438:in`call’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:640:in `call_filter' /vendor/rails/actionpack/lib/action_controller/filters.rb:641:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:438:in `call' /vendor/rails/actionpack/lib/action_controller/filters.rb:640:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:622:in `perform_action_without_benchmark' /vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in`perform\_action\_without\_rescue’ /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure' /vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in`perform\_action\_without\_rescue’ /vendor/rails/actionpack/lib/action\_controller/rescue.rb:111:in `perform_action' /vendor/rails/actionpack/lib/action_controller/base.rb:427:in`send’ /vendor/rails/actionpack/lib/action\_controller/base.rb:427:in `process_without_filters' /vendor/rails/actionpack/lib/action_controller/filters.rb:627:in`process\_without\_session\_management\_support’ /vendor/rails/actionpack/lib/action\_controller/session\_management.rb:114:in `process' /vendor/rails/actionpack/lib/action_controller/base.rb:330:in`process’ /vendor/rails/railties/lib/dispatcher.rb:41:in `dispatch' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:84:in`process’ /usr/local/lib/ruby/1.8/sync.rb:229:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:83:in`process’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:580:in `process_client' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in`each’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in `process_client' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in`run’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in`new’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in `run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in`initialize’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in `new' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in`run’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:267:in `run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in`each’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in `run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:127:in`run’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/command.rb:211:in `run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:231 /usr/local/bin/mongrel_rails:18:in`load’ /usr/local/bin/mongrel\_rails:18 Rendering /private/var/www/xxx.org/config/…/vendor/rails/actionpack/lib/action\_controller/templates/rescues/layout.rhtml (internal\_server\_error) I don’t know if this is a Mongrel problem or an RMagick problem, but it only happens when I try to make a chart. Meanwhile, the server output looks like this: Mon Nov 20 09:16:45 -0800 2006: Error calling Dispatcher.dispatch #\ /private/var/www/xxx.org/config/…/vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:416:in `remove_const' /private/var/www/xxx.org/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:416:in`send’ /private/var/www/xxx.org/config/…/vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:416:in `remove_constant' /private/var/www/xxx.org/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:270:in`remove\_unloadable\_constants!’ /private/var/www/xxx.org/config/…/vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:270:in `each' /private/var/www/xxx.org/config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:270:in`remove\_unloadable\_constants!’ /private/var/www/xxx.org/config/…/vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:73:in `clear' /private/var/www/xxx.org/config/../vendor/rails/railties/lib/dispatcher.rb:59:in`reset\_application!’ /private/var/www/xxx.org/config/…/vendor/rails/railties/lib/dispatcher.rb:111:in `reset_after_dispatch' /private/var/www/xxx.org/config/../vendor/rails/railties/lib/dispatcher.rb:51:in`dispatch’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:84:in `process' /usr/local/lib/ruby/1.8/sync.rb:229:in`synchronize’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:83:in `process' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:580:in`process\_client’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in `each' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in`process\_client’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in `run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in`initialize’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in `new' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in`run’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in`new’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in `run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:267:in`run’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in `each' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in`run’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel\_rails:127:in `run' /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/command.rb:211:in`run’ /usr/local/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel\_rails:231 /usr/local/bin/mongrel\_rails:18:in `load’ /usr/local/bin/mongrel\_rails:18 And when I try to restart, I get this: Mon Nov 20 01:13:16 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:13:22 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:13:28 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:13:34 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:13:40 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:13:46 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:13:52 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:13:58 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:14:04 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:14:10 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Waiting for 1 requests to finish, could take 60 seconds.Mon Nov 20 01:14:16 -0800 2006: Reaping 1 threads for slow workers because of ‘shutdown’ Thread #\ is too old, killing. Waiting for 1 requests to finish, could take 60 seconds.Loaded suite /usr/local/bin/mongrel\_rails Started Finished in 0.000216 seconds. 0 tests, 0 assertions, 0 failures, 0 errors On the Gentoo server, I get an application error immediately when I try to go to the page that loads RMagick. In the controller I have: def new @new\_params = { :type\_of\_chart =\> “dprs” } @daily\_progress\_chart = DailyProgressChart.new(@new\_params) end daily\_progress\_chart.rb begins: require ‘rvg/rvg’ require ‘RMagick’ include Magick class DailyProgressChart \< ActiveRecord::Base The chart is not generated until save, so I presume the problem is one of loading the required files. Here is what the production log says: Processing DailyProgressChartsController#new (for 164.116.22.137 at 2006-11-20 09:22:38) [GET] Session ID: adc0f2f2020d751f1b73c68142ccd209 Parameters: {“action”=\>“new”, “controller”=\>“daily\_progress\_charts”} LoadError (Expected /var/www/xxx.org/current/config/…/app/models/daily\_progress\_chart.rb to define DailyProgressChart): /vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:246:in `load_missing_constant' /vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:446:in`const\_missing’ /vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:458:in `const_missing' /vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:257:in`load\_missing\_constant’ /vendor/rails/activerecord/lib/…/…/activesupport/lib/active\_support/dependencies.rb:462:in `const_missing' /app/controllers/daily_progress_charts_controller.rb:78:in`new’ /vendor/rails/actionpack/lib/action\_controller/base.rb:1070:in `send' /vendor/rails/actionpack/lib/action_controller/base.rb:1070:in`perform\_action\_without\_filters’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:635:in `call_filter' /vendor/rails/actionpack/lib/action_controller/filters.rb:641:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:438:in `call' /vendor/rails/actionpack/lib/action_controller/filters.rb:640:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:637:in `call_filter' /vendor/rails/actionpack/lib/action_controller/filters.rb:641:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:438:in `call' /vendor/rails/actionpack/lib/action_controller/filters.rb:640:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:641:in `call_filter' /vendor/rails/actionpack/lib/action_controller/filters.rb:438:in`call’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:640:in `call_filter' /vendor/rails/actionpack/lib/action_controller/filters.rb:641:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:438:in `call' /vendor/rails/actionpack/lib/action_controller/filters.rb:640:in`call\_filter’ /vendor/rails/actionpack/lib/action\_controller/filters.rb:622:in `perform_action_without_benchmark' /vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in`perform\_action\_without\_rescue’ /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /vendor/rails/actionpack/lib/action_controller/benchmarking.rb:66:in`perform\_action\_without\_rescue’ /vendor/rails/actionpack/lib/action\_controller/rescue.rb:111:in `perform_action' /vendor/rails/actionpack/lib/action_controller/base.rb:427:in`send’ /vendor/rails/actionpack/lib/action\_controller/base.rb:427:in `process_without_filters' /vendor/rails/actionpack/lib/action_controller/filters.rb:627:in`process\_without\_session\_management\_support’ /vendor/rails/actionpack/lib/action\_controller/session\_management.rb:114:in `process' /vendor/rails/actionpack/lib/action_controller/base.rb:330:in`process’ /vendor/rails/railties/lib/dispatcher.rb:41:in `dispatch' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:84:in`process’ /usr/lib/ruby/1.8/sync.rb:229:in `synchronize' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/rails.rb:83:in`process’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:580:in `process_client' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in`each’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:579:in `process_client' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in`run’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in `initialize' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in`new’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:686:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in`initialize’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in `new' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel.rb:673:in`run’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:267:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in`each’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/configurator.rb:266:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:127:in`run’ /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/lib/mongrel/command.rb:211:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.4/bin/mongrel_rails:231 /usr/bin/mongrel_rails:18:in`load’ /usr/bin/mongrel\_rails:18 Rendering /var/www/xxx.org/current/config/…/public/500.html (500 Internal Server Error) I have no idea if these are the same problems or different problems. I’m fairly certain the problem is with RMagick (else why not on any other page?). Not finding some header files? Something changed? Anyone else having this problem? Thanks for any and all help. Charles F. Munat Seattle ---
**Author:** ![chas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@chas](https://www.ruby-forum.com/u/chas)\ **Post date:** [November 20, 2006, 8:15pm UTC](https://www.ruby-forum.com/t/rmagick-load-problems/76722/2 "2006-11-20T20:15:53Z")
Maybe i’m missing something (i’m not particularly familiar with rmagick) but it seems weird to do include Magick at the top of the file (ie not inside some class) Fred ---
**Author:** ![chas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@chas](https://www.ruby-forum.com/u/chas)\ **Post date:** [November 20, 2006, 8:42pm UTC](https://www.ruby-forum.com/t/rmagick-load-problems/76722/3 "2006-11-20T20:42:00Z")
Frederick C. wrote: > Maybe i’m missing something (i’m not particularly familiar with rmagick) > but it seems weird to do include Magick at the top of the file (ie not > inside some class) > > Fred That’s the way I’ve always done it and it works fine. Is that wrong? Chas. ---
**Author:** ![chas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@chas](https://www.ruby-forum.com/u/chas)\ **Post date:** [November 20, 2006, 8:46pm UTC](https://www.ruby-forum.com/t/rmagick-load-problems/76722/4 "2006-11-20T20:46:23Z")
Update: I determined that the problem on the Gentoo server was that ImageMagick had been updated using emerge to 6.3.0 but RMagick was still compiled for 6.2.9. Still trying to figure out why RMagick is failing on the MacBook… Can anyone tell me why I get the errors I get? Why do methods on loaded objects suddenly stop working? Is it because Mongrel is hanging (some thread is stuck). I assume the thread problem is because of some change to ImageMagick or RMagick… Life sure is exciting when error messages are cryptic. Thanks for any and all help. Chas. ---
**Author:** ![chas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@chas](https://www.ruby-forum.com/u/chas)\ **Post date:** [November 20, 2006, 10:54pm UTC](https://www.ruby-forum.com/t/rmagick-load-problems/76722/5 "2006-11-20T22:54:32Z")
Frederick C. wrote: > I’m not entirely sure. I’m just not entirely of the effect of that > statement, i.e. when it’s at the top level like that, exactly what is > the module being included in ? > > Fred I think it is just making the libraries available to the interpreter. I looked for some documentation on this and found this page: [http://pub.cozmixng.org/~the-rwiki/rw-cgi.rb?cmd=view;name=RubyCodingConvention](http://pub.cozmixng.org/~the-rwiki/rw-cgi.rb?cmd=view;name=RubyCodingConvention) Which seems to say that the way I have it is correct. What is most important to me is that it works! Thanks for the help. Chas. ---
**Author:** ![chas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@chas](https://www.ruby-forum.com/u/chas)\ **Post date:** [November 20, 2006, 9:05pm UTC](https://www.ruby-forum.com/t/rmagick-load-problems/76722/6 "2006-11-20T21:05:11Z")
Charles M. wrote: > Frederick C. wrote: > > > Maybe i’m missing something (i’m not particularly familiar with rmagick) > > but it seems weird to do include Magick at the top of the file (ie not > > inside some class) > > > > Fred > > That’s the way I’ve always done it and it works fine. Is that wrong? I’m not entirely sure. I’m just not entirely of the effect of that statement, i.e. when it’s at the top level like that, exactly what is the module being included in ? Fred