Redmine

Hello together,

i hope somebody can help me. On one of thirty active projects i get an "Internal Error" when i try to open Issues or Gantt.

The Server is a Suse 11.4 with the current BitNami Stack:
Redmine 1.2.1 (2011-07-11)
Database: MySQL 5.1.56 for pc-linux-gnu on i686 (MySQL Community Server (GPL))
Ruby: ruby 1.8.7 (2011-02-18 patchlevel 334) [i686-linux]
Rails: 2.3.11

When i open the Gantt Chart i get the following Error:
------------------------------------------------------------------
Processing GanttsController#show (for 81.223.151.146 at 2011-08-12 11:13:22) [GET]
Parameters: {"project_id"=>"newproductsuntory", "action"=>"show", "controller"=>"gantts"}
Rendering template within layouts/base
Rendering gantts/show

ActionView::TemplateError (comparison of Issue with Issue failed) on line #54 of app/views/gantts/show.html.erb:
51: # Width of the entire chart
52: g_width = (@gantt.date_to - @gantt.date_from + 1)*zoom
53:
54: @gantt.render(:top => headers_height + 8, :zoom => zoom, :g_width => g_width, :subject_width => subject_width)
55:
56: g_height = [(20 * (@gantt.number_of_rows + 6))+150, 206].max
57: t_height = g_height + headers_height

lib/redmine/helpers/gantt.rb:673:in `sort!'
lib/redmine/helpers/gantt.rb:673:in `sort_issues!'
lib/redmine/helpers/gantt.rb:204:in `render_project'
lib/redmine/helpers/gantt.rb:184:in `render'
app/models/project.rb:664:in `project_tree'
app/models/project.rb:660:in `each'
app/models/project.rb:660:in `project_tree'
lib/redmine/helpers/gantt.rb:182:in `render'
app/views/gantts/show.html.erb:54
app/controllers/gantts_controller.rb:43:in `show'
app/controllers/gantts_controller.rb:42:in `show'
config/initializers/mongrel_cluster_with_rails_211_fix.rb:62:in `dispatch_cgi'
Rendering /opt/redmine/apps/redmine/public/500.html (500 Internal Server Error)
------------------------------------------------------------------

Wen i open the Issue Chart i get the following Error:
------------------------------------------------------------------
Processing IssuesController#index (for 81.223.151.146 at 2011-08-12 11:13:16) [GET]
Parameters: {"project_id"=>"newproductsuntory", "set_filter"=>"1", "action"=>"index", "tracker_id"=>"1", "controller"=>"issues"}
Rendering template within layouts/base
Rendering issues/index.rhtml

ActionView::TemplateError (undefined method `-' for nil:NilClass) on line #28 of app/views/issues/_list.rhtml:
25: </tr>
26: <% previous_group = group >
27: < end >
28: <tr id="issue-<= issue.id >" class="hascontextmenu <= cycle('odd', 'even') > <= issue.css_classes > <= level > 0 ? "idnt idnt-#{level}" : nil >">
29: <td class="checkbox hide-when-print"><= check_box_tag("ids[]", issue.id, false, :id => nil) ></td>
30: <td class="id"><= link_to issue.id, :controller => 'issues', :action => 'show', :id => issue ></td>
31: < query.columns.each do |column| ><= content_tag 'td', column_content(column, issue), :class => column.css_classes >< end %>

app/models/issue.rb:578:in `css_classes'
app/views/issues/_list.rhtml:28:in `_run_rhtml_app47views47issues47_list46rhtml_locals_issues_list_object_query'
app/helpers/issues_helper.rb:27:in `issue_list'
app/helpers/issues_helper.rb:23:in `each'
app/helpers/issues_helper.rb:23:in `issue_list'
app/views/issues/_list.rhtml:16:in `_run_rhtml_app47views47issues47_list46rhtml_locals_issues_list_object_query'
app/views/issues/_list.rhtml:1:in `_run_rhtml_app47views47issues47_list46rhtml_locals_issues_list_object_query'
app/views/issues/index.rhtml:51:in `_run_rhtml_app47views47issues47index46rhtml'
app/controllers/issues_controller.rb:92:in `index'
app/controllers/issues_controller.rb:91:in `index'
config/initializers/mongrel_cluster_with_rails_211_fix.rb:62:in `dispatch_cgi'
Rendering /opt/redmine/apps/redmine/public/500.html (500 Internal Server Error)
------------------------------------------------------------------

The interesting point is, that this error appears only on one project. But i can't access any issue in this project over the menue and i don't have a number to try direct access.

Would be great if anybody have a idea how to solve this problem.