现在错误已通过添加require 'tournament_system'修复了，这是我的新错误：
这是终端：
Rendering html template
Rendered html template (0.0ms)
Rendered tourneys/index.html.erb within layouts/application (10.8ms)
Completed 401 Unauthorized in 16ms (Views: 0.3ms | ActiveRecord: 1.1ms)
RuntimeError - Not Implemented:
app/controllers/tourneys_controller.rb:77:in `tourn'
app/views/tourneys/index.html.erb:37:in `_app_views_tourneys_index_html_erb__1482772099755741577_70314301318160'
Started POST "/__better_errors/deabb75178ea93ac/variables" for ::1 at 2018-04-17 00:55:03 -0700
这是在网页上
Not Implemented
tournapp/controllers/tourneys_controller.rb
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def tourn
driver = Driver.new
# Generate a round of a single elimination tournament
TournamentSystem::SingleElimination.generate driver
#Challonge::Tournament.find(:all)
#@teamArray2 = render html: "<div>#{Challonge::Tournament.find(:all)}</div>".html_safe
end
>>
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Request info
Request parameters
{"controller"=>"tourneys", "action"=>"index"}
Rack session
(object too large. Modify ActionDispatch::Request::Session#inspect or increase BetterErrors.maximum_variable_inspect_size)
Local Variables
driver
#<Driver:0x00007fe6a4eba5e0>
我相信错误与未正确调用驱动程序有关。我还使用脚手架创建了控制器Tourney。
您的Class Driver是固有的TournamentSystem::Driver，但该模块不可用，因为它不是明确需要的。
添加require 'tournament_system'应该可以解决这个问题。
关于NotImplemented错误，这与您的代码无关。如果您遵循module SingleElimination中def generate的源代码(源代码(并遍历：
def 生成调用create_matches调用create_match最终调用build_match并且具有raise 'Not Implemented'。
项目的开发人员尚未完成所有必需功能的实现。