Error In query_helper.rb in redmine 2.2.x

[grassbl8d]

hi,

i'm getting this error when using redmine_backlogs on redmine 2.2.x branch

ActionView::Template::Error (undefined method <=>' for nil:NilClass): 20: </td> 21: <td class="add-filter"> 22: <%= label_tag('add_filter_select', l(:label_filter_add)) %> 23: <%= select_tag 'add_filter_select', filters_options_for_select(query), :name => nil %> 24: </td> 25: </tr> 26: </table> app/helpers/queries_helper.rb:33:infilters_options

options = [[]]
sorted_options = query.available_filters.sort do |a, b|
ord = 0
if !(a[1][:order] == 20 && b[1][:order] == 20)
ord = a[1][:order] <=> b[1][:order]
else
cn = (CustomField::CUSTOM_FIELDS_NAMES.index(a[1][:field].class.name) <=>
CustomField::CUSTOM_FIELDS_NAMES.index(b[1][:field].class.name))
if cn != 0

THanks!
Carlo

[grassbl8d]

wrong forum sorry