當我開始使用rails s
我的Rails的服務器,我收到此錯誤:?爲什麼我收到「找不到‘railties’錯誤使用Rails服務器
/usr/local/lib/site_ruby/1.8/rubygems/dependency.rb:296:in `to_specs': Could not find 'railties' (>= 0) among 10 total gem(s) (Gem::LoadError)
from /usr/local/lib/site_ruby/1.8/rubygems/dependency.rb:307:in `to_spec'
from /usr/local/lib/site_ruby/1.8/rubygems/core_ext/kernel_gem.rb:47:in `gem'
from /usr/bin/rails:22
如何解決呢