redmine连接subversion版本库问题，出现500错误

[skamalu1]

ruby 1.9.3p448
Rails 3.2.13
redmine-2.3.3
别的功能都可以正常使用，但使用redmine连接subversion版本库时

点击版本库选项后出现500错误，不知道是什么问题？求帮助！

redmine log信息如下
ActionView::Template::Error (undefined method `-' for {:length=>50}:Hash):
25: <td class="revision"><%= link_to_revision(entry.changeset, @repository) if entry.changeset %></td>
26: <td class="age"><%= distance_of_time_in_words(entry.lastrev.time, Time.now) if entry.lastrev && entry.lastrev.time %></td>
27: <td class="author"><%= entry.author %></td>
28: <td class="comments"><%=h truncate(entry.changeset.comments, :length => 50) if entry.changeset %></td>
29: <% end %>
30: </tr>
31: <% end %>
config/environment.rb:22:in `truncate'
app/views/repositories/_dir_list_content.html.erb:28:in `block in _app_views_repositories__dir_list_content_html_erb__4244999199527241588_58948520'
app/views/repositories/_dir_list_content.html.erb:1:in `each'
app/views/repositories/_dir_list_content.html.erb:1:in `_app_views_repositories__dir_list_content_html_erb__4244999199527241588_58948520'
app/views/repositories/_dir_list.html.erb:16:in `_app_views_repositories__dir_list_html_erb__780208683014920164_58915120'
app/views/repositories/show.html.erb:11:in `_app_views_repositories_show_html_erb__3973464992110231650_58544200'
app/controllers/repositories_controller.rb:125:in `show'

[skamalu1]

自己顶一下，可以用tortosieSVN客户端连接SVN服务器，不知道为什么通过redmine不行？

[wyp_王云朋]

原来有人和我一样的问题，帮顶。搞定了说下哈

[skamalu1]

楼上的哥们，你是什么版本的redmine

[wyp_王云朋]

redmine-1.4.7-2

[skamalu1]

官网下载了2.3.0，安装后解决了.....