Redmine

I am running 0.8.1 on Ubuntu 8.04 and some issues can no longer be displayed as pdfs. I'm not sure why some issues can be converted to pdf and not others. Clicking the link results in a 500 server error response. Here is the exception from the production.log

Processing IssuesController#index (for xxx.xxx.xxx.xxx at 2009-02-18 09:10:30) [GET]
Session ID: xxxxxxxxxxxxxxxxxxxxxxxxxx
Parameters: {"project_id"=>"xxxxxxxx", "set_filter"=>"1", "action"=>"index", "controller"=>"issues"}
"production.log" 3099 lines, 235291 characters
/lib/redmine/export/pdf.rb:271:in `issue_to_pdf'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_collection.rb:277:in `method_missing'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_proxy.rb:171:in `method_missing'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_proxy.rb:171:in `each'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_proxy.rb:171:in `send'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_proxy.rb:171:in `method_missing'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_collection.rb:277:in `method_missing'
/lib/redmine/export/pdf.rb:268:in `issue_to_pdf'
/app/controllers/issues_controller.rb:108:in `show'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/mime_responds.rb:131:in `call'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/mime_responds.rb:131:in `custom'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/mime_responds.rb:160:in `call'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/mime_responds.rb:160:in `respond'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/mime_responds.rb:154:in `each'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/mime_responds.rb:154:in `respond'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/mime_responds.rb:107:in `respond_to'
/app/controllers/issues_controller.rb:105:in `show'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:1166:in `send'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:1166:in `perform_action_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:579:in `call_filters'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:572:in `perform_action_without_benchmark'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/rescue.rb:201:in `perform_action_without_caching'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/caching/sql_cache.rb:13:in `perform_action'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in `cache'
/var/lib/gems/1.8/gems/activerecord-2.1.2/lib/active_record/query_cache.rb:8:in `cache'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/caching/sql_cache.rb:12:in `perform_action'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:529:in `send'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:529:in `process_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:568:in `process_without_session_management_support'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/session_management.rb:130:in `process'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:389:in `process'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:149:in `handle_request'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:107:in `dispatch'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:104:in `synchronize'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:104:in `dispatch'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:120:in `dispatch_cgi'
/var/lib/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:35:in `dispatch'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/rack/adapter/rails.rb:54:in `serve_rails'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/rack/adapter/rails.rb:74:in `call'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/connection.rb:63:in `pre_process'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/connection.rb:54:in `process'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/connection.rb:39:in `receive_data'
/var/lib/gems/1.8/gems/eventmachine-0.12.2/lib/eventmachine.rb:231:in `run_machine'
/var/lib/gems/1.8/gems/eventmachine-0.12.2/lib/eventmachine.rb:231:in `run'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/backends/base.rb:57:in `start'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/server.rb:150:in `start'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/controllers/controller.rb:80:in `start'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/runner.rb:173:in `send'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/runner.rb:173:in `run_command'
/var/lib/gems/1.8/gems/thin-1.0.0/lib/thin/runner.rb:139:in `run!'
/var/lib/gems/1.8/gems/thin-1.0.0/bin/thin:6
/usr/bin/thin:16:in `load'
/usr/bin/thin:16

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