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Normally I use:
gem install rails I can install Rails on Windows, but by default, I guess the latest version, version 3.0.3 is installed.
So if I want to install some other version of Rails, let's say 3.0.1, how can I do it?
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Use the secure installation method. Read the installation instructions — you probably want the single-user configuration. Use rvm list known to list available Rubies and then run rvm install x.x.x to install a specific version. Use rvm use x.x.x --default to change your default Ruby.
Go to your file explorer and make sure the folder is gone. Now go to http://rubyinstaller.org/downloads/ and pick an older version. Follow that process just like the first time you installed ruby. Then go get nokogiri and whatever other gems you like and enjoy.
Windows 10 allows you to run various Linux operating systems inside of Windows similar to a virtual machine, but natively implemented. We'll use this to install Ruby and run our Rails apps.
Example:
gem install rails -v 3.0.1 Also, all the options for gem can be seen by running gem -h
A note:
If you're on *nix using RVM is highly recommended for Ruby management.
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