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当我尝试启动 Rails 控制台时，出现以下错误，

/usr/lib/ruby/vendor_ruby/rails/railtie/configuration.rb:95:in `method_missing': undefined method `load_defaults' for #<Rails::Application::Configuration:0x000055af3aee4550> (NoMethodError)
        from /home/alizain/www/WorkStationMetrices/config/application.rb:12:in `<class:Application>'
        from /home/alizain/www/WorkStationMetrices/config/application.rb:10:in `<module:WorkstationMetrics>'
        from /home/alizain/www/WorkStationMetrices/config/application.rb:9:in `<top (required)>'
        from /home/alizain/www/WorkStationMetrices/vendor/bundle/ruby/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:92:in `require'
        from /home/alizain/www/WorkStationMetrices/vendor/bundle/ruby/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:92:in `preload'
        from /home/alizain/www/WorkStationMetrices/vendor/bundle/ruby/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:153:in `serve'
        from /home/alizain/www/WorkStationMetrices/vendor/bundle/ruby/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:141:in `block in run'
        from /home/alizain/www/WorkStationMetrices/vendor/bundle/ruby/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:135:in `loop'
        from /home/alizain/www/WorkStationMetrices/vendor/bundle/ruby/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:135:in `run'
        from /home/alizain/www/WorkStationMetrices/vendor/bundle/ruby/2.5.0/gems/spring-2.0.2/lib/spring/application/boot.rb:19:in `<top (required)>'
        from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
        from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
        from -e:1:in `<main>'

我怎样才能解决这个问题？

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1 回答 1

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根据给出的错误堆栈，您在应用程序加载期间似乎遇到了加载配置的问题。

下面提到的链接也解决了同样的问题。

尝试在 Heroku 上部署应用程序时出现错误“未定义的方法“load_defaults””

希望能帮助到你！！

于 2018-05-04T04:50:10.690 回答