[Answer]-Error on host m/c – can't establish a connection to the server at 127.0.0.1:8888

Did you change the Vagrantfile to do port forwardings?

For example, in your case, host port 8888 <=> guest port 8000

Vagrant.configure("2") do |config|
  config.vm.network :forwarded_port, guest: 8000, host: 8080
end

Refer to the docs: http://docs.vagrantup.com/v2/networking/forwarded_ports.html