ruby-on-rails - 为什么 Rails 服务器会出现 "Could not find ' railties 错误？

Question

当我使用 rails s 启动 Rails 服务器时，出现以下错误:

/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

我该如何解决？

Answer 1

尝试:

bundle install

然后用这个命令启动你的服务器:

bundle exec rails s