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railsのバージョンを指定してインストールする

Rails
More than 1 year has passed since last update.

やりたい事

rails 5系ではなく、4.2.1が欲しい。

$ gem instll rails

とするとrails 5系が入ってくる。

解決方法

以下コマンドでインストールできる。

$ gem install -v 4.2.1 rails

インストール後の確認

$ rails -v

Rails 4.2.1

4.2.1が無事に入りましたー

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