How to setup watch/livereload from virtualbox?

Question

virtual box

Created a gulp project in Virtualbox (vagrant + nginx) with watch/livereload. The files are on the working machine, I made a mount on the folder, the gulp project starts without errors, but it does not track file changes and, accordingly, does not update the project files in the browser.
ps The project on the working machine works ok, only from under Virtualbox does not work.

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "ubuntu/trusty64"

  config.vm.network "forwarded_port", guest: 80,    host: 8282
  config.vm.network "forwarded_port", guest: 3308,  host: 33308

  config.vm.network "private_network", ip: "10.5.5.58"

  config.vm.synced_folder '.', '/home/vagrant/code', nfs: true

  config.vm.provider "virtualbox" do |v|
    v.gui = false

    # Use VBoxManage to customize the VM. For example to change memory:
    v.customize ["modifyvm", :id, "--memory",               "512"]
    v.customize ["modifyvm", :id, "--cpuexecutioncap",      "95"]
    v.customize ["modifyvm", :id, "--natdnshostresolver1",  "on"]
    v.customize ["modifyvm", :id, "--natdnsproxy1",         "on"]
  end

  config.ssh.shell = "bash -c 'BASH_ENV=/etc/profile exec bash'"

end