在这里找到了一个类似的帖子,但我正在运行 Mac,所以第一个解决方案并不完全适用,第二个对我不起作用。
使用 ruby 1.9.3p0(2011-10-30 修订版 33570)[x86_64-darwin11.2.0] 运行 Mac OS 10.7.2、Xcode 4.2.1、rvm 1.10.1
我相信问题是由于 rvm 引起的,但是我不知道如何解决它
$ rails new dispatch_me
$ rails generate controller demo index
$ rails console
Loading development environment (Rails 3.2.0.rc2)
1.9.3-p0 :001 > env = {}
=> {}
1.9.3-p0 :002 > env['REQUEST_METHOD'] = 'GET'
=> "GET"
1.9.3-p0 :003 > env['PATH_INFO'] = '/demo/index'
=> "/demo/index"
1.9.3-p0 :004 > env['rack.input'] = StringIO.new
=> #<StringIO:0x007f946db0ece0>
1.9.3-p0 :005 > ActionController::Dispatcher.new.call(env).last.body
NameError: uninitialized constant ActionController::Dispatcher
from (irb):5
from /Users/rudolph9/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0.rc2/lib/rails/commands/console.rb:47:in `start'
from /Users/rudolph9/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0.rc2/lib/rails/commands/console.rb:8:in `start'
from /Users/rudolph9/.rvm/gems/ruby-1.9.3-p0/gems/railties- 3.2.0.rc2/lib/rails/commands.rb:41:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
1.9.3-p0 :006 >
我正在使用The Rails 3 Way
同样,我相信问题是由于 rvm 引起的,但是我不知道如何解决它?
更新:也许它与 rvm 无关,运行原生 Ruby 1.8.7 和 Rails 3.1.3 我遇到了同样的问题:
>> ActionController::Dispatcher.new.call(env).last.body
NameError: uninitialized constant ActionController::Dispatcher
from (irb):6