redmine - 在 Redmine 中查看项目的设置页面时出错

Question

我们最近将 Redmine 从 2.5.2 升级到 2.6，但是当我们访问项目的设置页面时出现错误“Redmine 500 错误”。当我查看错误日志时，我看到的是:

  Started GET "/projects/leaders-premier/settings" for xx.xx.xxx.xxx at 2014-12-09 16:21:58 -0500
  Processing by ProjectsController#settings as HTML
  Parameters: {"id"=>"leaders-premier"}
  Current user: ajankowski (id=3)
  Rendered projects/_form.html.erb (27.8ms)
  Rendered projects/_edit.html.erb (29.8ms)
  Rendered projects/settings/_modules.html.erb (4.7ms)
  Rendered projects/settings/_members.html.erb (77.6ms)
  Rendered common/_tabs.html.erb (117.8ms)
  Rendered projects/settings.html.erb within layouts/base (118.6ms)
    
  Completed 500 Internal Server Error in 268.9ms

    ActionView::Template::Error (The single-table inheritance mechanism failed to locate the subclass: 'GroupNonMember'. This error is raised because the column 'type' is reserved for storing the class in case of inheritance. Please rename this column if you didn't intend it to be used for storing the inheritance class or overwrite Principal.inheritance_column to use another column for that information.):
        77:       </p>
        78:       <%= javascript_tag "observeSearchfield('principal_search', null, '#{ escape_javascript autocomplete_project_memberships_path(@project, :format => 'js') }')" %>
        79:       <div id="principals_for_new_member">
        80:         <%= render_principals_for_new_members(@project) %>
        81:       </div>
        82:       <p>
        83:         <%= l(:label_role_plural) %>:
      app/helpers/members_helper.rb:25:in `render_principals_for_new_members'
      app/views/projects/settings/_members.html.erb:80:in `block in _app_views_projects_settings__members_html_erb__3521341374444963390_113866560'
      app/views/projects/settings/_members.html.erb:69:in `_app_views_projects_settings__members_html_erb__3521341374444963390_113866560'
      app/views/common/_tabs.html.erb:22:in `block in _app_views_common__tabs_html_erb___1280924502012219319_110275440'

我们甚至回到了 2.5.2，我们仍然得到同样的错误。任何人都知道是什么导致了这个问题？

Answer 1

当我升级然后降级时，它必须创建两个新组。我从用户表中删除了以下组:GroupNonMember 和 GroupAnonymous，问题就消失了。