Rails 5 升级：/actionpack-5.0.0/lib/action_controller/test_case.rb:49:in `initialize': 参数数量错误（0 代表 2）（ArgumentError）
Rails 5 Upgrade : /actionpack-5.0.0/lib/action_controller/test_case.rb:49:in `initialize': wrong number of arguments (0 for 2) (ArgumentError)
我最近正在进行 Rails 5 升级，当我尝试启动 rails 控制台时 运行 遇到了这个错误：
/actionpack-5.0.0/lib/action_controller/test_case.rb:49:in initialize': wrong number of arguments (0 for 2) (ArgumentError)
目前 bundle update rails 已完成 gem 依赖项的解决，足以更新到 5.0.0，rspec 正在 运行ning（尽管有很多休息我正在修复）。我也可以 运行 rails s 而不会出错。
这里是代码中断行：
https://github.com/rails/rails/blob/master/actionpack/lib/action_controller/test_case.rb
全栈：
/Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/actionpack-5.0.0/lib/action_controller/test_case.rb:49:in `initialize': wrong number of arguments (0 for 2) (ArgumentError)
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:41:in `new'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:41:in `block in controller'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:40:in `tap'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:40:in `controller'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:30:in `call'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context.rb:49:in `build'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/railtie.rb:63:in `block in <class:Railtie>'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:226:in `call'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:226:in `block in run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:247:in `each'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:247:in `each_registered_block'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:226:in `run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/application.rb:463:in `block in run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/engine/railties.rb:13:in `each'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/engine/railties.rb:13:in `each'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/application.rb:463:in `run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/engine.rb:442:in `load_console'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/console.rb:34:in `initialize'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/console_helper.rb:9:in `new'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/console_helper.rb:9:in `start'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:78:in `console'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
感谢 Scott W.
问题大部分在这里回答：
我想澄清一下，gem 'draper', github: 'drapergem/draper', branch: 'rails-5' 不再有效，但 gem 'draper', github: 'audionerd/draper', branch: 'rails5' 确实修复了这个错误。
我最近正在进行 Rails 5 升级，当我尝试启动 rails 控制台时 运行 遇到了这个错误：
/actionpack-5.0.0/lib/action_controller/test_case.rb:49:in initialize': wrong number of arguments (0 for 2) (ArgumentError)
目前 bundle update rails 已完成 gem 依赖项的解决，足以更新到 5.0.0，rspec 正在 运行ning（尽管有很多休息我正在修复）。我也可以 运行 rails s 而不会出错。
这里是代码中断行：
https://github.com/rails/rails/blob/master/actionpack/lib/action_controller/test_case.rb
全栈：
/Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/actionpack-5.0.0/lib/action_controller/test_case.rb:49:in `initialize': wrong number of arguments (0 for 2) (ArgumentError)
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:41:in `new'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:41:in `block in controller'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:40:in `tap'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:40:in `controller'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context/build_strategy.rb:30:in `call'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/view_context.rb:49:in `build'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/draper-2.1.0/lib/draper/railtie.rb:63:in `block in <class:Railtie>'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:226:in `call'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:226:in `block in run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:247:in `each'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:247:in `each_registered_block'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/railtie.rb:226:in `run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/application.rb:463:in `block in run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/engine/railties.rb:13:in `each'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/engine/railties.rb:13:in `each'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/application.rb:463:in `run_console_blocks'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/engine.rb:442:in `load_console'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/console.rb:34:in `initialize'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/console_helper.rb:9:in `new'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/console_helper.rb:9:in `start'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:78:in `console'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /Users/this_is_my_username/.rvm/gems/ruby-2.2.3/gems/railties-5.0.0/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
感谢 Scott W.
问题大部分在这里回答：
我想澄清一下，gem 'draper', github: 'drapergem/draper', branch: 'rails-5' 不再有效，但 gem 'draper', github: 'audionerd/draper', branch: 'rails5' 确实修复了这个错误。