Xcode is available on the Mac App Store or can be downloaded from Apple’s Developer site. Logout and login again to reload bash shell! Then we’ll use “rvm”, the Ruby Version Manager, to install a new version of Ruby. Go to System Preferences -> Users & Groups. though this command may succeed if you use sudo, in the long run it'll be easier if you use a version manager like rbenv or rvm. RVM allows you to install and manage multiple installations of Ruby on your system. Run the commands below to install RVM. RVM stands for Ruby Version Manager. To locate the Terminal, open Finder on your MacOS, click on Applications, locate the Utilities folder as shown in the image below, open the folder … Select rvm under Groups and add your user to the RVM group by selecting the checkbox next to … rvm will install an up-to-date version alongside your existing version. 132 Multi-User install for RVM cd ~/code/source \curl -L https://get.rvm.io | sudo bash -s stable Important! It allows you to easily install, manage, and work with multiple ruby environments. Unable to install any ruby version using rvm in Mac catalina 10.15.2 Hot Network Questions Finding nearest street name from selected point using ArcPy From my experiences, the biggest gotcha is when you try to install a new version of Ruby with RVM, and you're met with a handful of confusing errors. It can also manage different gemsets. A fresh Mac OS installation ensures security, stability & speed. rvm remove is the preferred way of removing rubies from rvm. Yeah I also found that if I changed my shell to bash chsh -s /bin/bash and re-ran the install command \curl -sSL https://get.rvm.io | bash -s stable everything … ... (reloads your terminal configuration file) rvm get stable rvm install 2.6.3 rvm use 2.6.3 — default ruby -v to verify Most of the time, this is the result of Apple's Xcode not being installed on your system, or, if it is, not being the current version. It is available for macOS, Linux, or other UNIX-like operating systems. Install RVM. Lastly, we’ll use our newly-installed Ruby tools to install the Rails library itself. To install RVM, you must first install Xcode. By default, not only will it remove the ruby and it's source files, it will also get rid of aliases, wrappers, environments and any associated binaries - in other words, it cleans up most of the install. RVM works by installing Ruby inside your home directory and manages the environment variables to allow you to switch between the system-wide Ruby and any Ruby installed using RVM. 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