Ruby on Rails : : Could not find json-1.6.1 in any of the sources

Having a setup of

• WEBrick 1.3.1
• Ruby 2.2.2
• Rails 3.2.22
• 5.6.22 MySQL
• Yosemite 10.10.4

I am trying to run an old Project built on Ruby version 1.9.2 - Rails 2.2.3 - WEBrick 1.3.1 and once i type command : rails server i get an error :

Installing json 1.6.1 with native extensions

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

Could not find json-1.6.1 in any of the sources

Run bundle install to install missing gems

When i type 'bundle install' in the project directory i receive an error of :

An error occurred while installing json (1.6.1), and Bundler cannot continue.

Make sure that gem install json -v '1.6.1' succeeds before bundling.

What do i have to do in order to get this environment able to run this old project? Should i have to downgrade my Rails version .

Furthemore, by the time it fails to update gem json -v '1.6.1' , is there any other way to update it?