...Jeweler is deprecated these days because you can now cut gems more easily using Bundler. Easy mode Check out a repository from Github like git clone git@github.com:makandra/aegis.git

...Gemfile in the :development group: gem 'guard-livereload', :require => false gem 'rack-livereload' Run bundle install. Add the middleware, by adding the following to your config/environments/development.rb: config.middleware.insert_after(ActionDispatch::Static...

Bundler::GemRequireError: There was an error while trying to load the gem 'mysql2'. Gem Load Error is: Incorrect MySQL client library version! This gem was compiled for 5.5.46 but the...