我已经创建了一个新的Rails项目目录，我刚刚编辑了.gem文件;我正在研究Michael Hartl的教程。我现在已经修改了.gem文件了。它表示我在命令提示符下运行的'rails generate rspec：install'旁边;但是，它现在给了我以下错误：
/Users/coreymkimball/Canvi/Projects/TheCanvi.com/RoR/The_Canvi/config/initializers/secret_token.rb:27:in `<top (required)>': uninitialized constant The_Canvi (NameError)
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/engine.rb:609:in `block (2 levels) in <class:Engine>'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/engine.rb:608:in `each'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/engine.rb:608:in `block in <class:Engine>'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/initializable.rb:30:in `run'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:150:in `block in tsort_each'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:183:in `block (2 levels) in each_strongly_connected_component'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:210:in `block (2 levels) in each_strongly_connected_component_from'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:219:in `each_strongly_connected_component_from'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:209:in `block in each_strongly_connected_component_from'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/initializable.rb:44:in `each'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/initializable.rb:44:in `tsort_each_child'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:203:in `each_strongly_connected_component_from'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:182:in `block in each_strongly_connected_component'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:180:in `each'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:180:in `each_strongly_connected_component'
from /Users/coreymkimball/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/tsort.rb:148:in `tsort_each'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/application.rb:215:in `initialize!'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/coreymkimball/Canvi/Projects/TheCanvi.com/RoR/The_Canvi/config/environment.rb:5:in `<top (required)>'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/application.rb:189:in `require'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/application.rb:189:in `require_environment!'
from /Users/coreymkimball/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/railties-4.0.0/lib/rails/commands.rb:45:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
我可以帮忙吗？
答案 0 :(得分：0)
查看您的错误消息，它显示uninitialized constant The_Canvi。这意味着当代码运行时，它正在查找该名称的常量（很可能是一个类），但rails无法找到它。对于ruby社区来说，这实际上是一个奇怪的命名约定。作为提示，在创建新的rails应用程序时，您应该以全小写形式创建应用程序的名称，然后用下划线分隔每个单词。
在您的示例中，我建议rails new the_canvi。这将使用常量TheCanvi作为主应用程序类名生成应用程序。对于所有模型，控制器等等，这都是相同的。
由于这只是一个新教程，请尝试删除该应用，然后重新开始。无论如何，习惯于构建新的应用程序总是很好的做法。
希望有所帮助！