在尝试解决一些错误的过程中，我错误地将以下命令从SO粘贴到我的终端中，然后我的开发环境似乎不再起作用了。
sudo chown -R `whoami` ~/.npm
当我尝试运行rails时，我收到以下错误。
/Users/harshamv/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/dependency.rb:315:in `to_specs': Could not find 'railties' (>= 0) among 43 total gem(s) (Gem::LoadError)
Checked in 'GEM_PATH=/Users/harshamv/.gem/ruby/2.1.0:/Users/harshamv/.rvm/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0', execute `gem env` for more information
from /Users/harshamv/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/dependency.rb:324:in `to_spec'
from /Users/harshamv/.rvm/rubies/ruby-2.1.2/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_gem.rb:64:in `gem'
from /Users/harshamv/.rvm/gems/ruby-2.1.2/bin/rails:22:in `<main>'
from /Users/harshamv/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `eval'
from /Users/harshamv/.rvm/gems/ruby-2.1.2/bin/ruby_executable_hooks:15:in `<main>'