Hello,
i just installed the rcov plugin for my rails application and when i
run the unit tests i get this error:

rake test:units:rcov

27 tests, 49 assertions, 0 failures, 0 errors
c:/ruby/lib/ruby/1.8/rexml/document.rb:186:in `write': undefined local
variable
or method `transitive' for <UNDEFINED> ... </>:REXML::Document (NameError)
from (eval):93:in `pretty'
from c:/ruby/lib/ruby/site_ruby/1.8/rcov/report.rb:761:in
`format_overvi
ew'
from c:/ruby/lib/ruby/site_ruby/1.8/rcov/report.rb:796:in
`create_index'

from (eval):104:in `create'
from (eval):80:in `tracking_additions'
from (eval):103:in `create'
from (eval):372:in `x_'
from c:/ruby/lib/ruby/site_ruby/1.8/rcov/report.rb:796:in
`create_index'

... 22 levels...
from c:/ruby/lib/ruby/site_ruby/1.8/rcov.rb:640:in `each'
from c:/ruby/lib/ruby/site_ruby/1.8/rcov.rb:640:in
`dump_coverage_info'
from c:/ruby/bin/rcov:421
from c:/ruby/lib/ruby/1.8/test/unit.rb:278
rake aborted!
Command failed with status (1): [rcov.cmd -o "C:/Users/Bruno
Siqueira/Docum...]

any clues?
Bruno