Clean install OSX 10.9.1 returns “undefined method `path2class'” when trying to install gems

Question

I just installed a clean Mavericks installation with Homebrew and RVM. Both brew doctor and rvm requirements return \"all good\", however, when I run <

Answer 1

I was having the same problem and remembered that XCode had been updated recently. I was reminded of this because some Terminal output claimed that the developer tools were not installed and suggested running the following:

$ xcode-select --install

It still wasn't working so I used rvm to install the latest 2.1 version of Ruby, created a new gemset, pointed my app to use that gemset and ran $ bundle install. It now works.