无法在 rails 项目中生成 rspec，“抛出未初始化的常量 RSpec (NameError)”答案

【问题标题】：Unable to generate rspec in rails project, "uninitialized constant RSpec (NameError) is thrown"无法在 rails 项目中生成 rspec，“抛出未初始化的常量 RSpec (NameError)”
【发布时间】：2014-12-05 13:20:04
【问题描述】：

>: rails generate rspec:install
/Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481/gems/rspec-core-3.1.7/lib/rspec/core/formatters/base_formatter.rb:1:in `<top (required)>': uninitialized constant RSpec (NameError)
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481/gems/allure-rspec-0.6.7/lib/allure-rspec/formatter.rb:1:in `require'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481/gems/allure-rspec-0.6.7/lib/allure-rspec/formatter.rb:1:in `<top (required)>'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481/gems/allure-rspec-0.6.7/lib/allure-rspec.rb:3:in `require'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481/gems/allure-rspec-0.6.7/lib/allure-rspec.rb:3:in `<top (required)>'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/runtime.rb:76:in `require'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/runtime.rb:72:in `each'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/runtime.rb:72:in `block in require'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/runtime.rb:61:in `each'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/runtime.rb:61:in `require'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler.rb:132:in `require'
from /Users/prashanth_sams/Desktop/MAC/blog/config/application.rb:7:in `<top (required)>'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481/gems/railties-3.2.16/lib/rails/commands.rb:24:in `require'
from /Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p481/gems/railties-3.2.16/lib/rails/commands.rb:24:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

我在终端中尝试了以下 cmd

bundle exec rails generate rspec:install

但没有运气:(

将以下内容放在我的 Gemfile 中

group :test, :development do
  gem 'rspec-rails', '~> 3.1.0'
end

【问题讨论】：

常数是Rspec 我相信
嗨！ @Малъ Скрылевъ 这个问题有解决办法吗？
您使用哪些导轨？

标签： ruby-on-rails rspec rspec2 rspec-rails

【解决方案1】：

可能是rspec的版本不兼容：降级rspec的版本或者直接写：

gem 'rspec-rails'

然后你可以更新它：

bundle update rspec-rails

【讨论】：

【解决方案2】：

我可以创建 spec 文件夹和 spec_helper.rb 使用

rspec --init

【讨论】：