Redmine

Hi all,

I have just migrated to 1.0.0 and I am getting the following error while viewing issues:

Processing IssuesController#index (for 192.168.100.157 at 2010-08-04 17:06:48) [GET]
Parameters: {"project_id"=>"mis-reporting", "action"=>"index", "controller"=>"issues"}
Rendering template within layouts/base
Rendering issues/index.rhtml

ActionView::TemplateError (undefined method `-' for nil:NilClass) on line #16 of app/views/issues/_list.rhtml:
13: </tr></thead>
14: <% previous_group = false >
15: <tbody>
16: < issue_list(issues) do |issue, level| ->
17: < if @query.grouped? && (group = @query.group_by_column.value(issue)) != previous_group >
18: < reset_cycle %>
19: <tr class="group open">

app/helpers/issues_helper.rb:28: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
    app/views/issues/_list.rhtml:1:in `_run_rhtml_app47views47issues47_list46rhtml_locals_issues_list_object_query'
    app/views/issues/index.rhtml:62:in `_run_rhtml_app47views47issues47index46rhtml'
    app/controllers/issues_controller.rb:83
    app/controllers/issues_controller.rb:82:in `index'

Rendering C:/Program Files/BitNami Redmine Stack/apps/redmine/public/500.html (500 Internal Server Error)