Gem 今天程序忽然出现问题，目前还没有定位问题在哪，望各位紧急指点
NoMethodError (undefined method options' for {}:Hash):
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/bundler/gems/rack-1824547e8dfa/lib/rack/session/abstract/id.rb&line=309&column=1">/bundler/gems/rack-1824547e8dfa/lib/rack/session/abstract/id.rb:309:incommit_session'
/bundler/gems/rack-1824547e8dfa/lib/rack/session/abstract/id.rb:206:in context'</a>
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/bundler/gems/rack-1824547e8dfa/lib/rack/session/abstract/id.rb&line=200&column=1">/bundler/gems/rack-1824547e8dfa/lib/rack/session/abstract/id.rb:200:incall'
/gems/actionpack-3.2.5/lib/action_dispatch/middleware/cookies.rb:338:in call'</a>
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/gems/activerecord-3.2.5/lib/active_record/query_cache.rb&line=64&column=1">/gems/activerecord-3.2.5/lib/active_record/query_cache.rb:64:incall'
/gems/activerecord-3.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:473:in call'</a>
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.5/lib/action_dispatch/middleware/callbacks.rb&line=28&column=1">/gems/actionpack-3.2.5/lib/action_dispatch/middleware/callbacks.rb:28:inblock in call'
/gems/activesupport-3.2.5/lib/active_support/callbacks.rb:405:in _run__1624901490285996571__call__3823123465846478178__callbacks'</a>
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.5/lib/active_support/callbacks.rb&line=405&column=1">/gems/activesupport-3.2.5/lib/active_support/callbacks.rb:405:in__run_callback'
/gems/activesupport-3.2.5/lib/active_support/callbacks.rb:385:in _run_call_callbacks'</a>
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.5/lib/active_support/callbacks.rb&line=81&column=1">/gems/activesupport-3.2.5/lib/active_support/callbacks.rb:81:inrun_callbacks'
/gems/actionpack-3.2.5/lib/action_dispatch/middleware/callbacks.rb:27:in call'</a>
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.5/lib/action_dispatch/middleware/reloader.rb&line=65&column=1">/gems/actionpack-3.2.5/lib/action_dispatch/middleware/reloader.rb:65:incall'
/gems/actionpack-3.2.5/lib/action_dispatch/middleware/remote_ip.rb:31:in call'</a>
<a href="txmt://open?url=file:///home/naitnix/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.5/lib/action_dispatch/middleware/debug_exceptions.rb&line=16&column=1">/gems/actionpack-3.2.5/lib/action_dispatch/middleware/debug_exceptions.rb:16:incall'
/gems/actionpack-3.2.5/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
啊，@woaigithub 谢谢了，我的问题解决了，是 rake 的版本问题，在 Gemfile 里面我的 rake 是这样的：gem 'rack', :git => 'git://github.com/rack/rack.git' 应该是这个 rake 有升级或者改动造成的，谢谢啦