前提・実現したいこと
rails を勉強中の学生です。rails s をすると以下のようなエラーが出ます。
かなりの時間を使って解決を試みましたがどれも失敗してしまい、お手上げ状態です。どなたかご教授のほどよろしくお願いします。
rails -p 3000 などでとりあえずは実行できるのですが、デプロイ時エラーが出て、ここら辺が関わっているのではないかと思い質問しました。普通は、Listening on tcp://0.0.0.0:3000 が一回しか出ないはずなのですが...
発生している問題・エラーメッセージ
=> Booting Puma => Rails 5.2.1 application starting in development => Run `rails server -h` for more startup options [1167] Puma starting in cluster mode... [1167] * Version 3.12.0 (ruby 2.5.1-p57), codename: Llamas in Pajamas [1167] * Min threads: 5, max threads: 5 [1167] * Environment: development [1167] * Process workers: 2 [1167] * Preloading application [1167] * Listening on tcp://0.0.0.0:3000 [1167] * Listening on tcp://0.0.0.0:3000 Exiting Traceback (most recent call last): 40: from bin/rails:3:in `<main>' 39: from bin/rails:3:in `load' 38: from /Users/yuki/rails/git_tech/tec_board/bin/spring:15:in `<top (required)>' 37: from /Users/yuki/rails/git_tech/tec_board/bin/spring:15:in `require' 36: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `<top (required)>' 35: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `load' 34: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/bin/spring:49:in `<top (required)>' 33: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client.rb:30:in `run' 32: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client/command.rb:7:in `call' 31: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `call' 30: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `load' 29: from /Users/yuki/rails/git_tech/tec_board/bin/rails:9:in `<top (required)>' 28: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `require' 27: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:253:in `load_dependency' 26: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `block in require' 25: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require' 24: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi' 23: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register' 22: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi' 21: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require' 20: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands.rb:18:in `<main>' 19: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/command.rb:46:in `invoke' 18: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/command/base.rb:65:in `perform' 17: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/thor-0.20.3/lib/thor.rb:387:in `dispatch' 16: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/thor-0.20.3/lib/thor/invocation.rb:126:in `invoke_command' 15: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/thor-0.20.3/lib/thor/command.rb:27:in `run' 14: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands/server/server_command.rb:142:in `perform' 13: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands/server/server_command.rb:142:in `tap' 12: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands/server/server_command.rb:147:in `block in perform' 11: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.2.1/lib/rails/commands/server/server_command.rb:53:in `start' 10: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/rack-2.0.6/lib/rack/server.rb:297:in `start' 9: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/rack/handler/puma.rb:70:in `run' 8: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/launcher.rb:184:in `run' 7: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/cluster.rb:410:in `run' 6: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/runner.rb:151:in `load_and_bind' 5: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/binder.rb:88:in `parse' 4: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/binder.rb:88:in `each' 3: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/binder.rb:105:in `block in parse' 2: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/binder.rb:272:in `add_tcp_listener' 1: from /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/binder.rb:272:in `new' /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/puma-3.12.0/lib/puma/binder.rb:272:in `initialize': Address already in use - bind(2) for "0.0.0.0" port 3000 (Errno::EADDRINUSE)
試したこと
rails s -p 3000 は実行可能です。
ps で見ても他に起動しているサーバーはないです。
エラー内容では「port 3000がすでに使われている」となっていますがps で確認しています。
予想としては rails s で一気に二つ起動しているのではないかと思うのですが、どうしたらよいかわからないです。
#################追記################
sudo lsof -i -P | grep "LISTEN"
をしたところ
iCoreServ 64 root 11u IPv4 0x5b64cd14a1797b3f 0t0 TCP localhost:37848 (LISTEN) VisualStu 334 yuki 41u IPv4 0x5b64cd14a9489b3f 0t0 TCP localhost:49215 (LISTEN) rapportd 1813 yuki 3u IPv4 0x5b64cd14ad8f20bf 0t0 TCP *:53638 (LISTEN) rapportd 1813 yuki 4u IPv6 0x5b64cd14a6beefd7 0t0 TCP *:53638 (LISTEN)
が表示されました。
また
rails s -p 3000
をおこなってから
sudo lsof -i -P | grep "LISTEN"
したところ
iCoreServ 64 root 11u IPv4 0x5b64cd14a1797b3f 0t0 TCP localhost:37848 (LISTEN) VisualStu 334 yuki 41u IPv4 0x5b64cd14a9489b3f 0t0 TCP localhost:49215 (LISTEN) rapportd 1813 yuki 3u IPv4 0x5b64cd14ad8f20bf 0t0 TCP *:53638 (LISTEN) rapportd 1813 yuki 4u IPv6 0x5b64cd14a6beefd7 0t0 TCP *:53638 (LISTEN) ruby 1846 yuki 10u IPv4 0x5b64cd14aa7ff0bf 0t0 TCP localhost:3000 (LISTEN) ruby 1846 yuki 11u IPv6 0x5b64cd14a6bef597 0t0 TCP localhost:3000 (LISTEN) ruby 1860 yuki 10u IPv4 0x5b64cd14aa7ff0bf 0t0 TCP localhost:3000 (LISTEN) ruby 1860 yuki 11u IPv6 0x5b64cd14a6bef597 0t0 TCP localhost:3000 (LISTEN) ruby 1861 yuki 10u IPv4 0x5b64cd14aa7ff0bf 0t0 TCP localhost:3000 (LISTEN) ruby 1861 yuki 11u IPv6 0x5b64cd14a6bef597 0t0 TCP localhost:3000 (LISTEN)
となりました。
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