Question

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。但是当我尝试迁移数据库时，它以某种方式失败。请参阅下面的完整轨迹

耙子中止了！ 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_support/dependencies.rb：293：in require' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:293:in封锁要求” C：/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb：259：in load_dependency' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active_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 <top (required)>' 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 block (2 levels) in 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-rails/config/application.rb：7：<top (required)>' C:/Ruby24-x64/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in中的'require' C：/Ruby24-x64/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb：55：在require' C:/promotracks-rails/Rakefile:4:in中 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_module.rb:29:in load_rakefile' C：/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb：703：在load_rakefile的raw_load_rakefile' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:104:in块中 C：/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb：186：在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'中 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_exception_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：在load' C:/Ruby24-x64/bin/rake:23:in'
中

（我已经安装了红宝石，导轨，宝石和捆绑器）

Answer 1

Gist of it Rails应用程序与Windows环境不兼容，因此只需切换到Mac或Linux。

Answer 2

根据帖子中共享的日志：

尽管eventmachine是作为x64-mingw平台gem提供的，但它不支持ruby-2.4或2.5以前的版本，现在已修复。因此，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事件机，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

在Windows上为现有ROR应用设置本地服务器的指南

2 个答案: