启动Rails服务器时出错（getaddrinfo：提供了节点名或服务名）
[英]Error launching rails server (getaddrinfo: nodename nor servname provided)
问题描述
So I've been running this rails server for about a month now and after rebooting the computer (I was trying to add global environment variables on my mac) the server now kicks out this error when I run "rails s". 
因此，我已经在这个Rails服务器上运行了大约一个月，并且在重新启动计算机后（我试图在Mac上添加全局环境变量），当我运行“ rails s”时，该服务器现在会踢出此错误。 I've made sure that both localhost and the virtual domain are pointing to 127.0.0.1 as well. 我确保本地主机和虚拟域也都指向127.0.0.1。 As I said, before rebooting, this was working fine, but afterwards is when the error popped up. 就像我说的那样，在重新启动之前，这可以正常工作，但是之后是错误弹出时。
=> Booting Unicorn
=> Rails 4.2.0 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn- 4.8.3/lib/unicorn/configurator.rb:604:in `pack_sockaddr_in': getaddrinfo: nodename nor servname provided, or not known (SocketError)
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/configurator.rb:604:in `canonicalize_tcp'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/configurator.rb:590:in `expand_addr'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:236:in `listen'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:809:in `block in bind_new_listeners!'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:809:in `each'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:809:in `bind_new_listeners!'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:138:in `start'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-rails-2.2.0/lib/unicorn_rails.rb:33:in `run'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/server.rb:286:in `start'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/server.rb:80:in `start'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from /Users/chris/bbplm/bin/rails:8:in `require'
from /Users/chris/bbplm/bin/rails:8:in `<top (required)>'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/spring-1.2.0/lib/spring/client/rails.rb:27:in `load'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/spring-1.2.0/lib/spring/client/rails.rb:27:in `call'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/spring-1.2.0/lib/spring/client/command.rb:7:in `call'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/spring-1.2.0/lib/spring/client.rb:26:in `run'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/spring-1.2.0/bin/spring:48:in `<top (required)>'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/spring-1.2.0/lib/spring/binstub.rb:11:in `load'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/spring-1.2.0/lib/spring/binstub.rb:11:in `<top (required)>'
from /Users/chris/bbplm/bin/spring:16:in `require'
from /Users/chris/bbplm/bin/spring:16:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
After removing spring from the gemfile, I bundle installed and tried re-running the server. 从gemfile中删除spring之后，我捆绑安装并尝试重新运行服务器。 This is the error I received. 这是我收到的错误。
=> Booting Unicorn
=> Rails 4.2.0 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/configurator.rb:604:in `pack_sockaddr_in': getaddrinfo: nodename nor servname provided, or not known (SocketError)
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/configurator.rb:604:in `canonicalize_tcp'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/configurator.rb:590:in `expand_addr'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:236:in `listen'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:809:in `block in bind_new_listeners!'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:809:in `each'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:809:in `bind_new_listeners!'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-4.8.3/lib/unicorn/http_server.rb:138:in `start'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/unicorn-rails-2.2.0/lib/unicorn_rails.rb:33:in `run'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/server.rb:286:in `start'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/server.rb:80:in `start'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /Users/chris/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:8:in `require'
from bin/rails:8:in `<main>'
1 个解决方案
解决方案1
2 2016-06-01 18:19:38
check etc/hosts has 127.0.0.1 localhost 检查etc/hosts是否具有127.0.0.1 localhost
This was my issue, although where and how it went i have no idea! 这是我的问题，尽管我不知道它的去向和去向！
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