Ruby加载错误，app.rb文件找不到，如何解决此类问题？

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刚刚使用capistrano部署了一个ruby应用程序。我非常确定自己像往常一样做了操作。但是，在部署过程中遇到了以下错误：

cannot load such file -- app.rb (LoadError)config.ru:1:in 'require'config.ru:1:in 'block in main'/home/de:

这表明在尝试加载`app.rb`文件时出现了问题。请检查`app.rb`文件是否存在，以及其路径是否正确。

刚刚使用capistrano部署了一个 ruby应用程序.我很确定我像往常一样做了一切.乘客虽然输出以下内容：

cannot load such file -- app.rb (LoadError) config.ru:1:in `require' config.ru:1:in `block in <main>' /home/deploy/apps/blog/shared/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:55:in `instance_eval' /home/deploy/apps/blog/shared/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:55:in `initialize' config.ru:1:in `new' config.ru:1:in `<main>' /home/deploy/.rvm/gems/ruby-2.0.0-p353/gems/passenger-4.0.29/helper-scripts/rack-preloader.rb:108:in `eval' /home/deploy/.rvm/gems/ruby-2.0.0-p353/gems/passenger-4.0.29/helper-scripts/rack-preloader.rb:108:in `preload_app' /home/deploy/.rvm/gems/ruby-2.0.0-p353/gems/passenger-4.0.29/helper-scripts/rack-preloader.rb:153:in `<module:App>' /home/deploy/.rvm/gems/ruby-2.0.0-p353/gems/passenger-4.0.29/helper-scripts/rack-preloader.rb:29:in `<module:PhusionPassenger>' /home/deploy/.rvm/gems/ruby-2.0.0-p353/gems/passenger-4.0.29/helper-scripts/rack-preloader.rb:28:in `<main>' **Application root** /home/deploy/apps/blog/current

app.rb实际上在此目录中.

请改用config.ru中的以下内容

require "./app" run Sinatra::Application

这是路径问题