Ruby on rails 在Windows上为现有ROR应用程序设置本地服务器的指南

我是ROR的新手，我正在尝试在本地服务器上运行现有的rails应用程序。但不知为什么，当我尝试迁移数据库时，它失败了。请参阅下面的完整跟踪

雷克流产了！LoadError:无法加载此类文件--eventmachine C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active\u support/dependencies.rb:293:in

require'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active\u-support/dependencies.rb:293:in

block-in-require' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active\u support/dependencies.rb:259:in

load\u dependencity'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active\u support/dependencies.rb:293:in

require' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/thin-1.7.2/lib/thin.rb:7:in

'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler/runtime.rb:81:in

require' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler/runtime.rb:81:in

块（2级）中的require'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler/runtime.rb:76:in

each' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler/runtime.rb:76:in

block in require'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler/runtime.rb:65:in

each' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler/runtime.rb:65:in

require'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler.rb:114:in

require' C:/promotracks/config/application.rb:7:in

'
C:/Ruby24-x64/lib/ruby/2.4.0/rubygems/core\u ext/kernel\u require.rb:55:in

require' C:/Ruby24-x64/lib/ruby/2.4.0/rubygems/core\u ext/kernel\u require.rb:55:in

require'
C:/rails/Rakefile:4:in

' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/rake_module.rb:29:in

load'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/rake_模块。rb:29:in

load_rakefile' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:703:in

raw\u load\u rakefile'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:104:in

块加载_rakefile' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:186:in

standard_exception_handling'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:103:in

load_rakefile' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:82:in

block in run'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:186:in

standard\u exception\u handling' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:80:in

run'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/exe/rake:27:in

' C:/Ruby24-x64/bin/rake:23:in

load'
C:/Ruby24-x64/bin/rake:23:in

'

---

（我安装了ruby、rails、gem和bundler）

rails应用程序的要点与windows环境不兼容，因此只需切换到mac或linux即可。

根据帖子中共享的日志：

虽然eventmachine是作为x64 mingw平台gem提供的，但它不支持ruby-2.4或2.5之前的版本，现在已经修复了。因此，我建议您执行以下操作：

首先，（在Windows+Ruby 2.4上）确保删除所有版本的eventmachine，例如

gem uninstall eventmachine

然后使用下面提到的命令重新安装：

gem install eventmachine --platform ruby

---

你的gem文件中有eventmachine吗？没有，我在gemfileadd

gem“eventmachine”中没有看到它

到您的Gemfile并运行bundle安装。我这么做了，但现在当我尝试rake db:migrate时，它抛出了这个错误LoadError:无法加载这样的文件--2.4/rubyeventmachine C:/promotracks rails/config/application.rb:7:in

'C:/promotracks rails/Rakefile:4:in

'（通过使用--trace运行任务查看完整跟踪）您可以尝试将其作为

gem安装eventmachine--platformruby