我在Dropbox中有项目和两台正在运行的笔记本电脑：一台使用Ubuntu，另一台使用Mac OS X Lion 10.7.3。当我尝试在ubuntu上运行rspec或黄瓜时它们运行良好，但是当我尝试在Mac上运行测试时，我遇到了相同的错误
config / application.rb:13: Bundler.require(*Rails.groups(:assets => %w(development test)))
对于黄瓜：
Using the default profile...
undefined method `gsub' for nil:NilClass (NoMethodError)
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:77:in `rescue in rescue in block in require'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:72:in `rescue in block in require'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:62:in `block in require'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:55:in `each'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:55:in `require'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler.rb:119:in `require'
/Users/sergey/Dropbox/rails_projects/payforapps/config/application.rb:13:in `<top (required)>'
/Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/Users/sergey/Dropbox/rails_projects/payforapps/config/environment.rb:2:in `<top (required)>'
/Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/Users/sergey/Dropbox/rails_projects/payforapps/features/support/env.rb:11:in `block in <top (required)>'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/spork-0.9.0/lib/spork.rb:24:in `prefork'
/Users/sergey/Dropbox/rails_projects/payforapps/features/support/env.rb:6:in `<top (required)>'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/rb_support/rb_language.rb:129:in `load'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/rb_support/rb_language.rb:129:in `load_code_file'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:171:in `load_file'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:83:in `block in load_files!'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:82:in `each'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:82:in `load_files!'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/runtime.rb:175:in `load_step_definitions'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/runtime.rb:40:in `run!'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/cli/main.rb:43:in `execute!'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/lib/cucumber/cli/main.rb:20:in `execute'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/cucumber-1.1.9/bin/cucumber:14:in `<top (required)>'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/bin/cucumber:19:in `load'
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/bin/cucumber:19:in `<main>'
对于rspec：
No DRb server is running. Running in local process instead ...
/Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:77:in `rescue in rescue in block in require': undefined method `gsub' for nil:NilClass (NoMethodError)
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:72:in `rescue in block in require'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:62:in `block in require'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:55:in `each'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler/runtime.rb:55:in `require'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.1/lib/bundler.rb:119:in `require'
from /Users/sergey/Dropbox/rails_projects/payforapps/config/application.rb:13:in `<top (required)>'
from /Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/sergey/Dropbox/rails_projects/payforapps/config/environment.rb:2:in `<top (required)>'
from /Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/sergey/Dropbox/rails_projects/payforapps/spec/spec_helper.rb:10:in `block in <top (required)>'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/spork-0.9.0/lib/spork.rb:24:in `prefork'
from /Users/sergey/Dropbox/rails_projects/payforapps/spec/spec_helper.rb:4:in `<top (required)>'
from /Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/sergey/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /Users/sergey/Dropbox/rails_projects/payforapps/spec/controllers/static_pages_controller_spec.rb:1:in `<top (required)>'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/configuration.rb:746:in `load'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/configuration.rb:746:in `block in load_spec_files'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/configuration.rb:746:in `map'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/configuration.rb:746:in `load_spec_files'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/command_line.rb:22:in `run'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/runner.rb:66:in `rescue in run'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/runner.rb:62:in `run'
from /Users/sergey/.rvm/gems/ruby-1.9.3-p125@payforapps321/gems/rspec-core-2.9.0/lib/rspec/core/runner.rb:10:in `block in autorun'
我该如何解决？任何帮助赞赏。谢谢。
答案 0 :(得分：4)
问题出在我的 Gemfile 中的两个宝石中：
gem 'rb-inotify', '0.8.8'
gem 'libnotify', '0.5.9'
据我所知，这些宝石只与Ubuntu兼容。
<强> UPD：
您应该将特定于操作系统的宝石添加到组中。将所有OS X特定宝石添加到Gemfile中的 darwin 组，将所有特定于Linux的宝石添加到 linux 组：
# Gemfile
group :darwin do
gem 'rb-fsevent'
gem 'growl'
end
group :linux do
gem 'rb-inotify'
end
要在合适的环境中要求合适的宝石，请将以下内容添加到 config / application.rb ：
platform = RUBY_PLATFORM.match(/(linux|darwin)/)[0].to_sym
Bundler.require(platform)
有关bundler的更多信息，请参阅https://github.com/bbatsov/rails-style-guide#bundler。
答案 1 :(得分：0)
我的宝石出了问题。
更新捆绑包
正确阅读错误，它会告诉你哪个宝石是罪魁祸首。
事实并非所有的宝石都与操作系统兼容。