環境 mac OS X El Capitan バージョン10.11.6 rbenv ruby 2.3.1 エラー内容 pryを実行しようとしたら突然以下の様なエラーが出た。 $ pry Sorry, you can't use byebug without Readline. To solve this, you need to rebuild Ruby with Readline support. If using Ubuntu, try `sudo apt-get install libreadline-dev` and then reinstall your Ruby. ..... /Users/XXXXX/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require':
![pryでReadlineがないエラーの解決方法 - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/4ea44f66efe42e051a423ae8c2e5ce4c398df8ae/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9cHJ5JUUzJTgxJUE3UmVhZGxpbmUlRTMlODElOEMlRTMlODElQUElRTMlODElODQlRTMlODIlQTglRTMlODMlQTklRTMlODMlQkMlRTMlODElQUUlRTglQTclQTMlRTYlQjElQkElRTYlOTYlQjklRTYlQjMlOTUmdHh0LWFsaWduPWxlZnQlMkN0b3AmdHh0LWNvbG9yPSUyMzIxMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT01NiZzPWI4MmQ5NjNlOWUxYjBjY2NkZjMwMGQ2MTM5M2JkNWI5%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBrYW5wb3UwMTA4JnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9MzYmdHh0LWFsaWduPWxlZnQlMkN0b3Amcz0xYTRkM2UyYWJmOGY2ZjgwMTViY2Q5MjBlNTlkYmJkMw%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3D7f96526a35e2fca1eaf5cedcd737c723)