在Windows上为现有ROR应用程序设置本地服务器的指导

Posted 2021-04-02

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，它以某种方式失败了。请参阅下面的完整描述

耙子流产了！ 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_support/dependencies.rb:293：在require' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:293:inblock中的require'C ：/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:259：在load_dependency' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:293:inrequire'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:inrequire'C：/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/ bundler / runtime.rb：81：在block (2 levels) in require' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/bundler-1.16.4/lib/bundler/runtime.rb:76:ineach'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:ineach'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:inrequire'C:/promotracks-rails/config/application.rb: 7：在<top (required)>' C:/Ruby24-x64/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:inrequire'C：/Ruby24-x64/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:inrequire' C:/promotracks-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_module.rb:29:inload_rakefile'C：/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/ applicati on.rb：703：在load_rakefile中的raw_load_rakefile' C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:104:inblock'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:inload_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:instandard_exception_handling'C：/ Ruby24-x64 / lib / ruby​​ / gems / 2.4.0 / gems / rake-12.3.1 / lib / rake / application.rb:80:inrun' 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）

答案

它的主旨Rails应用程序与Windows环境不兼容所以只需切换到mac或linux。

另一答案

根据帖子中分享的日志：

尽管eventmachine是作为x64-mingw平台gem提供的，但它不支持早期修复的ruby-2.4或2.5。所以会建议你做以下事情：

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