desc "Run all tests for rbgooey with rcov"
Spec::Rake::SpecTask.new('gui') do |t|
	t.spec_files = FileList['rbgooey/test/*.rb']
	t.rcov = true
	t.ruby_opts = ['-x', '/usr/local/lib/site_ruby']
end

rake aborted!
wrong number of arguments (1 for 0)

/usr/bin/ruby1.8 -x /usr/local/lib/site_ruby -I"/usr/lib/ruby/gems/1.8/gems/rspec-0.8.2/lib" -S rcov --exclude lib\/spec,bin\/spec,config\/boot.rb -o "coverage" "/usr/lib/ruby/gems/1.8/gems/rspec-0.8.2/bin/spec" -- "rbgooey/test/test.rb"
/usr/bin/ruby1.8: Is a directory - /usr/local/lib/site_ruby (Errno::EISDIR)
rake aborted!
Command failed with status (1): [/usr/bin/ruby1.8 -x /usr/local/lib/site_ru...]