(Bundler::GemRequireError) Gem 加载错误是：未初始化的常量 AbstractController::Rendering

Question

我正在使用 Rails 5.0.0.beta3，一切正常，在我集成后 sendgrid-rails 我在运行 rspec[=16 时遇到了这个异常=]

There was an error while trying to load the gem 'sendgrid-rails'. (Bundler::GemRequireError)
Gem Load Error is: uninitialized constant AbstractController::Rendering
Backtrace for gem load error is:
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.beta3/lib/action_controller/base.rb:204:in `<class:Base>'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.beta3/lib/action_controller/base.rb:164:in `<module:ActionController>'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.beta3/lib/action_controller/base.rb:5:in `<top (required)>'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/actionview-5.0.0.beta3/lib/action_view/test_case.rb:11:in `<class:TestCase>'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/actionview-5.0.0.beta3/lib/action_view/test_case.rb:10:in `<module:ActionView>'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/actionview-5.0.0.beta3/lib/action_view/test_case.rb:8:in `<top (required)>'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/rails-controller-testing-0.1.1/lib/rails-controller-testing.rb:16:in `block in <top (required)>'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0.beta3/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0.beta3/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook'
/Users/hieupham/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.0.beta3/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'

我认为只有 Rails 才会出现这种情况 5、您有遇到过此类问题吗？

如何解决这个问题？顺便说一句，我也为作者提出了一个issue

谢谢

Answer 1

我刚刚通过以下方式解决了这个问题：

将 require false 添加到 gem 文件

group :test do
  gem 'rails-controller-testing', :require => false
end

需要gem在test_helper.rb或rails_helper.rb之后

# Other configs
require 'rails-controller-testing'

参考这个recommendation

(Bundler::GemRequireError) Gem 加载错误是：未初始化的常量 AbstractController::Rendering

(Bundler::GemRequireError) Gem Load Error is: uninitialized constant AbstractController::Rendering

ruby-on-rails

rspec

rspec-rails

ruby-on-rails-5

sendgrid-rails