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Rails6でPG::ConnectionBadというエラーが出た原因と対応

Posted at

エラーが出た手順

rails sでWebサーバー起動

http://localhost:3000/ にアクセスすると
PG::ConnectionBadというエラーが出た

3C20CC71-D23D-4497-A685-5704DA0F704A.png

原因

db(PostgreSQL)のほうはdockerで立ち上げる構成だったのだけど
立ち上げ忘れていたので、dbに接続できない状態だった。

対応

docker-compose up -dでDBを起動する

確認

webページの再読み込み

正常に表示された OK!

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