Railsサーバーが終了しています（binder.rb：249）error

Question

私はRubyとRailsには本当に新しく、私はodinプロジェクトのinstallfestに従おうとしていましたが、インストール段階を過ぎても見えませんでした。私はレールサーバーを走らせようとしましたが、これは終了してこのエラーを出し続けます。誰も助けることができますか？どうもありがとうございました。

=> Booting Puma 
=> Rails 5.0.2 application starting in development on http://localhost:3000 
=> Run `rails server -h` for more startup options 
Puma starting in single mode... 
* Version 3.8.2 (ruby 2.3.3-p222), codename: Sassy Salamander 
* Min threads: 5, max threads: 5 
* Environment: development 
* Listening on tcp://localhost:3000 
Exiting 
/Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/binder.rb:249:in `gethostbyname': getaddrinfo: nodename nor servname provided, or not known (SocketError) 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/binder.rb:249:in `localhost_addresses' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/binder.rb:262:in `add_tcp_listener' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/binder.rb:105:in `block in parse' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/binder.rb:88:in `each' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/binder.rb:88:in `parse' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/runner.rb:144:in `load_and_bind' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/single.rb:87:in `run' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/puma/launcher.rb:172:in `run' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/puma-3.8.2/lib/rack/handler/puma.rb:64:in `run' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/rack-2.0.1/lib/rack/server.rb:296:in `start' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/railties-5.0.2/lib/rails/commands/server.rb:79:in `start' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:90:in `block in server' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `tap' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `server' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:49:in `run_command!' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/railties-5.0.2/lib/rails/commands.rb:18:in `<top (required)>' 
    from /Users/macbookpro/railsbridge/test_app/bin/rails:9:in `require' 
    from /Users/macbookpro/railsbridge/test_app/bin/rails:9:in `<top (required)>' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in `load' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in `call' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/spring-2.0.1/lib/spring/client/command.rb:7:in `call' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/spring-2.0.1/lib/spring/client.rb:30:in `run' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/spring-2.0.1/bin/spring:49:in `<top (required)>' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/spring-2.0.1/lib/spring/binstub.rb:31:in `load' 
    from /Users/macbookpro/.rvm/gems/ruby-2.3.3/gems/spring-2.0.1/lib/spring/binstub.rb:31:in `<top (required)>' 
    from /Users/macbookpro/railsbridge/test_app/bin/spring:15:in `require' 
    from /Users/macbookpro/railsbridge/test_app/bin/spring:15:in `<top (required)>' 
    from bin/rails:3:in `load' 
    from bin/rails:3:in `<main>' 

Answer 1

あなたはtmp/pidsパスにあるserver.pidを削除しようとすることができます。すでに別の端末タブまたはウィンドウでサーバを起動している可能性があります。