Can't create a new Ruby project

Question

I have just started learning Ruby on Rails and I'm stuck in the beginning! I have installed the package from http://www.railsinstaller.org/ and followed the installation steps. Yet when I type: rails new rubyProject I get the following:

Gem::InstallError: ffi requires Ruby version <2.5, >= 2.0.
An error occurred while installing ffi <1.9.18>, and bundler cannot continue.
Make sure that 'gem install ffi -v '1.9.18''succeeded before bundling.

I've read a number of articles but non of them worked for me. Can you help me?

Answer 1

RailsInstaller does contain a few known bugs. Lets take a step back and start from scratch.

• Uninstall all traces of Ruby and RailsInstaller on your system.
• Ensure the RailsInstaller setup file says 3.3.0
• Install RailsInstaller using the default options
• Open the patched version of your cmd.exe (you'll find a new shortcut in your Start Menu) and configure Git and DevKit tools for your system. Here on always work using this cmd.exe . It will start in C:/Sites and will automatically show you your Git n Ruby versions.
• Check installed Ruby version. (Should report v2.3.3 as per the website)
• Then update all installed gems: (Important)
  1. gem update --system --no-ri --no-rdoc to update your Rubygems version
  2. gem update --no-document
• Check Rails version. ( rails -v ) Should be 5.1.2