无法在 Windows 8 上启动 Rails 服务器

Question

我正在关注 ruby​​ 教程，但在运行“rails s”时出现此错误。

这之前工作正常，但现在我无法启动 rails 服务器。好像我在rails中改变了一些东西。

启动 WEBrick Rails 4.1.5 应用程序开始在开发中 运行rails server -h 以获得更多启动选项 注意：服务器正在侦听所有接口（0.0.0.0）。考虑使用 127.0 0.1（--绑定选项） Ctrl-C 关闭服务器 西亭 ：/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.1.5/lib/act ve_support/dependencies.rb:247:in require': cannot load such file -- syslogger (LoadError) from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport- .1.5/lib/active_support/dependencies.rb:247:inblock in require' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport- .1.5/lib/active_support/dependencies.rb:232:in load_dependency' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport- .1.5/lib/active_support/dependencies.rb:247:inrequire' 来自 c:/Sites/omrails/config/environment.rb:8:in <top (required)>' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport- .1.5/lib/active_support/dependencies.rb:247:inrequire' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport- .1.5/lib/active_support/dependencies.rb:247:in block in require' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport- .1.5/lib/active_support/dependencies.rb:232:inload_dependency' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport- .1.5/lib/active_support/dependencies.rb:247:in require' from c:/Sites/omrails/config.ru:3:inblock in ' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib 机架/builder.rb:55:in instance_eval' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib rack/builder.rb:55:ininitialize' 来自 c:/Sites/omrails/config.ru:in new' from c:/Sites/omrails/config.ru:in' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib 机架/builder.rb:49:in eval' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib rack/builder.rb:49:innew_from_string' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib 机架/builder.rb:40:in parse_file' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib rack/server.rb:277:inbuild_app_and_options_from_config' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib 机架/server.rb:199:in app' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands/server.rb:50:inapp' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib 机架/server.rb:314:in wrapped_app' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands/server.rb:130:inlog_to_stdout' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands/server.rb:67:in start' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands/commands_tasks.rb:81:inblock in server' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands/commands_tasks.rb:76:in tap' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands/commands_tasks.rb:76:inserver' 来自 c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands/commands_tasks.rb:40:in run_command!' from c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.1.5 lib/rails/commands.rb:17:in' 从 bin/rails:4:in require' from bin/rails:4:in'

**** 编辑 我尝试重新安装 rails，现在启动 rails server 时出现此错误****

C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/activesupport-4.1.5/lib/active_support/de pendencies.rb:247:in require': cannot load such file -- sqlite3/sqlite3_native (LoadError) from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/activesupport-4.1.5/lib/acti ve_support/dependencies.rb:247:inblock in require' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/activesupport-4.1.5/lib/acti ve_support/dependencies.rb:232:in load_dependency' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/activesupport-4.1.5/lib/acti ve_support/dependencies.rb:247:inrequire' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sqlite3-1.3.9-x64-mingw32/li b/sqlite3.rb:6:in rescue in <top (required)>' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sqlite3-1.3.9-x64-mingw32/li b/sqlite3.rb:2:in' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bundler-1.7.3/lib/bundler/ru ntime.rb:76:in require' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bundler-1.7.3/lib/bundler/ru ntime.rb:76:inblock (2 级) in require' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bundler-1.7.3/lib/bundler/ru ntime.rb:72:in each' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bundler-1.7.3/lib/bundler/ru ntime.rb:72:inblock in require' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bundler-1.7.3/lib/bundler/ru ntime.rb:61:in each' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bundler-1.7.3/lib/bundler/ru ntime.rb:61:inrequire' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bundler-1.7.3/lib/bundler.rb :133:在require' from C:/Sites/omrails/config/application.rb:7:in' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/railties-4.1.5/lib/rails/com mands/commands_tasks.rb:79:in require' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/railties-4.1.5/lib/rails/com mands/commands_tasks.rb:79:inblock in server' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/railties-4.1.5/lib/rails/com mands/commands_tasks.rb:76:in tap' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/railties-4.1.5/lib/rails/com mands/commands_tasks.rb:76:inserver' 来自 C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/railties-4.1.5/lib/rails/com mands/commands_tasks.rb:40:in run_command!' from C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/railties-4.1.5/lib/rails/com mands.rb:17:in' 从 bin/rails:4:in require' from bin/rails:4:in'

Answer 1

问题出在哪里？

您正在为 Windows 上的 Rails 使用 sqlite3 数据库！

我的 Windows 10 也收到了类似的错误警告！

---

错误在哪里？

错误在您的 gemspec 文件夹中！

在您的 Windows 8 上找到您的 gemspec 文件夹： C:\Ruby21\lib\ruby\gems\2.1.0\specifications.

如果您使用的是RailsInstaller，请转至：C:\RailsInstaller\Ruby2.1.0\lib\ruby\gems\2.1.0\specifications！

---

手动修复

你应该根据你的 Rubygem 路径和 sqlite3 版本进行调整。

编辑文件

• sqlite3-4.1.5.gemspec
• activesupport-4.1.5.gemspec
• 机架-4.1.5.gemspec
• railties-4.1.5.gemspec

并查找以下行：

s.require_paths=["lib"]

改成：

s.require_paths= ["lib/sqlite3_native"]

---

有用的链接

您的问题类似于cannot load such file -- sqlite3/sqlite3_native (LoadError) on ruby on rails!