在 Windows 中设置 rspec 后。我收到以下消息;
C:\Sites\rails_projects\sample_app>bundle exec rspec spec/
C:/Sites/rails_projects/sample_app/rspec-core/ruby/1.9.1/gems/autotest-4.3.2/lib
/autotest.rb:77: Use RbConfig instead of obsolete and deprecated Config.
windows环境下如何切换到RbConfig?