Windows11でPostgreSQLを使用すると、 Railsアプリケーション実行でエラーが発生しました。
①Windows11に次のツールをインストールしました。
Ruby バージョン:3.3.5
Ruby on Rails バージョン:7.2.1
pg バージョン:1.5.9
②次のコマンドで、Railsの新規アプリケーションをpostgresqlで作成しました。
cd \RailsTest
rails new books_p -d postgresql
③「F:\DataRails\books_p\config\database.yml」は、次のように修正しました。
# PostgreSQL. Versions 9.3 and up are supported. # # Install the pg driver: # gem install pg # On macOS with Homebrew: # gem install pg -- --with-pg-config=/usr/local/bin/pg_config # On Windows: # gem install pg # Choose the win32 build. # Install PostgreSQL and put its /bin directory on your path. # # Configure Using Gemfile # gem "pg" # default: &default adapter: postgresql encoding: unicode # For details on connection pooling, see Rails configuration guide # https://guides.rubyonrails.org/configuring.html#database-pooling pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %> username: postgres password: (パスワード) host: localhost development: <<: *default database: books_p_development # The specified database role being used to connect to PostgreSQL. # To create additional roles in PostgreSQL see `$ createuser --help`. # When left blank, PostgreSQL will use the default role. This is # the same name as the operating system user running Rails. #username: books_p # The password associated with the PostgreSQL role (username). #password: # Connect on a TCP socket. Omitted by default since the client uses a # domain socket that doesn't need configuration. Windows does not have # domain sockets, so uncomment these lines. #host: localhost # The TCP port the server listens on. Defaults to 5432. # If your server runs on a different port number, change accordingly. #port: 5432 # Schema search path. The server defaults to $user,public #schema_search_path: myapp,sharedapp,public # Minimum log levels, in increasing order: # debug5, debug4, debug3, debug2, debug1, # log, notice, warning, error, fatal, and panic # Defaults to warning. #min_messages: notice # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: <<: *default database: books_p_test username: postgres password: (パスワード) host: localhost # As with config/credentials.yml, you never want to store sensitive information, # like your database password, in your source code. If your source code is # ever seen by anyone, they now have access to your database. # # Instead, provide the password or a full connection URL as an environment # variable when you boot the app. For example: # # DATABASE_URL="postgres://myuser:mypass@localhost/somedatabase" # # If the connection URL is provided in the special DATABASE_URL environment # variable, Rails will automatically merge its configuration values on top of # the values provided in this file. Alternatively, you can specify a connection # URL environment variable explicitly: # # production: # url: <%= ENV["MY_APP_DATABASE_URL"] %> # # Read https://guides.rubyonrails.org/configuring.html#configuring-a-database # for a full overview on how database connection configuration can be specified. # production: <<: *default database: books_p_production username: books_p # password: <%= ENV["BOOKS_P_DATABASE_PASSWORD"] %> username: postgres password: (パスワード) host: localhost
④ その後の「rake db:drop」コマンドを実行すると、下記のコマンドが表示されました。
⑤また、「rails server」をした後、WEB画面では、次の表示がされました。
どなたか、このバグの原因及び解決策がわかっておられる方がおられたら、ご指導お願いします。
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