Question

我按照有关如何开始使用rails的教程，但最终得到的结果与视频不同。以下是使用命令rails s时收到的消息：

C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:269:in `initialize': Permission denied - bind(2) for "127.0.0.1" port 3000 (Errno::EACCES)
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:269:in `new'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:269:in `add_tcp_listener'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:263:in `block in add_tcp_listener'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:262:in `each'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:262:in `add_tcp_listener'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:105:in `block in parse'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:88:in `each'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/binder.rb:88:in `parse'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/runner.rb:144:in `load_and_bind'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/single.rb:87:in `run'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/puma/launcher.rb:172:in `run'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/puma-3.8.2/lib/rack/handler/puma.rb:64:in `run'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:296:in `start'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/server.rb:79:in `start'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:90:in `block in server'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `tap'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `server'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
    from C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/railties-5.0.2/lib/rails/commands.rb:18:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

编辑：我在Windows上，并尝试以管理员身份运行命令提示符。结果相同。

编辑已解决：

technet.microsoft.com/en-us/library/ms345310(v = sql.100）.aspx并重启你的电脑 - Chetan Mehta

Answer 1

对于ubuntu：

尝试运行sudo rails s 确保你有sudo权限

如果端口繁忙，您可以尝试在其他端口上运行服务器。即：

rails s -p 3001

如果您使用的是窗口，则代替sudo尝试以管理员身份运行命令提示符

Rails：权限被拒绝 - 绑定（2）为“127.0.0.1”端口3000（Errno :: EACCES）

1 个答案: