TypeError: can't convert nil into Array

c:/ruby/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:99:in `concat'
c:/ruby/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:99:in `merge_in'
c:/ruby/lib/ruby/1.8/rdoc/ri/ri_reader.rb:56:in `get_class'
c:/ruby/lib/ruby/1.8/rdoc/ri/ri_reader.rb:52:in `get_class'
C:/ruby/freeride/plugins/rubyide_tools_fox_ri/fxri/lib/RiManager.rb:107:in `report_class_stuff'
C:/ruby/freeride/plugins/rubyide_tools_fox_ri/fxri/lib/RiManager.rb:101:in `show'
C:/ruby/freeride/./plugins/rubyide_tools_fox_ri/fxri/fxri.rb:288:in `on_show'
C:/ruby/freeride/./plugins/rubyide_tools_fox_ri/fxri/fxri.rb:296:in `show_info'
C:/ruby/freeride/./plugins/rubyide_tools_fox_ri/fxri/fxri.rb:153:in `build'
c:/ruby/lib/ruby/gems/1.8/gems/fxruby-1.2.6-mswin32/lib/fox12/responder2.rb:57:in `onHandleMsg'
C:/ruby/freeride/./plugins/rubyide_fox_gui/appframe.rb:51:in `start'
C:/ruby/freeride/freebase/lib/freebase/databus.rb:950:in `call'
C:/ruby/freeride/freebase/lib/freebase/databus.rb:560:in `call'
C:/ruby/freeride/freebase/lib/freebase/core.rb:69:in `initialize'
C:/ruby/freeride/freebase/lib/freebase/core.rb:68:in `initialize'
C:/ruby/freeride/freebase/lib/freebase/core.rb:35:in `startup'
freeride.rb:77:in `startup'
freeride.rb:116

Date: 2006-08-21 16:41
Sender: Laurent Julliard

Does it happen when you click on any Module name or one in particular?
Or do you really have the name "Module" as is in your
list?

Would you mind opening a console window and type the command
line
 ...> ri Module

where Module is the name of the class that cause the crash in
FR. Does it give an output?