Ruby on rails rails生成rspec:install config/environments/development.rb:1:in`<；顶部（必需）>'；：未定义的方法`configure'；

首先，以下是我的版本：

Greg-Nowickis-MacBook-Pro:sample_app Greg_Nowicki$ ruby -v
ruby 2.0.0p451 (2014-02-24 revision 45167) [x86_64-darwin13.1.0]
Greg-Nowickis-MacBook-Pro:sample_app Greg_Nowicki$ rails -v
Rails 4.0.4

我正在学习HartlRails教程并安装rspec进行测试。我已经将gem'rspec rails'添加到我的gem文件中，当我运行rails generate rspec:install时，我得到的是：

Greg-Nowickis-MacBook-Pro:sample_app Greg_Nowicki$ rails generate rspec:install
    /Users/Greg_Nowicki/workspace/railstutorial/sample_app/config/environments/development.rb:1:in `<top (required)>': undefined method `configure' for #<SampleApp::Application:0x007fcd3a47c138> (NoMethodError)
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `require'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `block in require'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:214:in `load_dependency'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `require'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/engine.rb:591:in `block (2 levels) in <class:Engine>'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/engine.rb:590:in `each'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/engine.rb:590:in `block in <class:Engine>'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:30:in `run'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:150:in `block in tsort_each'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:183:in `block (2 levels) in each_strongly_connected_component'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:210:in `block (2 levels) in each_strongly_connected_component_from'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:219:in `each_strongly_connected_component_from'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:209:in `block in each_strongly_connected_component_from'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:44:in `each'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:44:in `tsort_each_child'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:203:in `each_strongly_connected_component_from'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:182:in `block in each_strongly_connected_component'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:180:in `each'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:180:in `each_strongly_connected_component'
from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:148:in `tsort_each'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/application.rb:215:in `initialize!'
from /Users/Greg_Nowicki/workspace/railstutorial/sample_app/config/environment.rb:5:in `<top (required)>'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/application.rb:189:in `require'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/application.rb:189:in `require_environment!'
from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/commands.rb:44:in `<top (required)>'
from bin/rails:8:in `require'
from bin/rails:8:in `<main>'

这里是config/environments/development.rb

Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

  # In the development environment your application's code is reloaded on
  # every request. This slows down response time but is perfect for development
  # since you don't have to restart the web server when you make code changes.
  config.cache_classes = false

  # Do not eager load code on boot.
  config.eager_load = false

  # Show full error reports and disable caching.
  config.consider_all_requests_local       = true
  config.action_controller.perform_caching = false

  # Don't care if the mailer can't send.
  config.action_mailer.raise_delivery_errors = false

  # Print deprecation notices to the Rails logger.
  config.active_support.deprecation = :log

  # Raise an error on page load if there are pending migrations.
  config.active_record.migration_error = :page_load

  # Debug mode disables concatenation and preprocessing of assets.
  # This option may cause significant delays in view rendering with a large
  # number of complex assets.
  config.assets.debug = true

  # Adds additional error checking when serving assets at runtime.
  # Checks for improperly declared sprockets dependencies.
  # Raises helpful error messages.
  config.assets.raise_runtime_errors = true

  # Raises error for missing translations
  # config.action_view.raise_on_missing_translations = true
end

---

你有什么想法吗？我继续将rspec rails更新为最新版本-想法？

尝试使用不同版本的rspec，在您的gem文件中将测试版替换为此版本：

gem'rspec rails'，'>=2.14'

---

编辑：在尝试运行rspec之前，您是否运行了

捆绑安装
和
rails生成rspec:install
？
在config/environments/development.rb中：

改变

Rails.application.configure do 

到

我检查了几份申请表，这就是我的申请表格式
 Changed development.rb对我毫无帮助

然而，帮助我的是：

$rvm 2.0.0

在使用创建应用程序之前

$rails新的第一个应用程序

请注意，Gemfile的版本是2.0.0，而不是我最初使用的2.1.1，因此在创建应用程序之前，请匹配ruby版本

不知道为什么这很重要。
我还删除了3.0.0.beta版的rspec rails gem版本参考，但这也不起作用。请向我们展示一下
config/environments/development.rb
顶部的内容！这就是错误发生的地方。@RyanBigg刚刚添加了它，谢谢。可能是重复的，只是尝试了这个，但它不起作用。是的，我已经成功运行了bundle安装。当我尝试运行railsgenerate-rspec:install时会出现错误。
Rails.application.configure do 

SampleApp::Application.configure do