problem with running aoutotest

autotestproblem

<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- test/unit/ui/console/testrunner (LoadError)
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/redgreen-1.2.2/lib/redgreen.rb:2:in `<top (required)>'
	from <internal:lib/rubygems/custom_require>:33:in `require'
	from <internal:lib/rubygems/custom_require>:33:in `rescue in require'
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from /home/vadkant/.autotest:2:in `<top (required)>'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/ZenTest-4.4.2/lib/autotest.rb:305:in `load'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/ZenTest-4.4.2/lib/autotest.rb:305:in `block in initialize'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/ZenTest-4.4.2/lib/autotest.rb:304:in `each'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/ZenTest-4.4.2/lib/autotest.rb:304:in `initialize'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/rspec-core-2.3.1/lib/autotest/rspec2.rb:10:in `initialize'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/rspec-rails-2.3.0/lib/autotest/rails_rspec2.rb:31:in `initialize'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/ZenTest-4.4.2/lib/autotest.rb:236:in `new'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/ZenTest-4.4.2/lib/autotest.rb:236:in `run'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/gems/ZenTest-4.4.2/bin/autotest:7:in `<top (required)>'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/bin/autotest:19:in `load'
	from /home/vadkant/.rvm/gems/ruby-1.9.2-p0/bin/autotest:19:in `<main>'

np, thanks!