インストール Chocolatey Windowsのパッケージ管理ツール。 @powershell -NoProfile -ExecutionPolicy unrestricted -Command "iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))" && SET PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin Ruby choco install ruby Ruby Development Kit choco install ruby.devkit Ruby on Rails gem install rails --no-ri --no-rdoc 確認 C:\>rails --version DL is deprecated
![WindowsでRuby on Railsの環境を作る。 - 山pの楽しいお勉強生活](https://cdn-ak-scissors.b.st-hatena.com/image/square/64ee7f6e7fa7ded2505462a96e0c4499c0b6ce21/height=288;version=1;width=512/http%3A%2F%2Fcdn-ak.f.st-hatena.com%2Fimages%2Ffotolife%2Fy%2Fyamap_55%2F20141109%2F20141109225220.jpg)