uninitialized constant ExecJS::Runtimes::RubyRacerRuntime-Twitter bootstrap
In my existing project I changed gem "twitter-bootstrap-rails" to gem 'bootstrap', '~> 4.1.3' in my Gemfile. I'm getting now uninitialized constant ExecJS::Runtimes::RubyRacerRuntime on line: <%= stylesheet_link_tag "application", :media => "all" %> in app/views/layouts.html.erb Gemfile: source 'https://rubygems.org' git_source(:github) { |repo| "https://github.com/#{repo}.git"…