How to fix vagrant after system update?

Question

ubuntu

Hi all!
I love vagrant. Most of all, due to the fact that the folder on the disk corresponded to the folder in the virtual machine.
The virtual machine was ubuntu server 10-x.
There was a need for php > 5.5. I did not find a package for 10-ki. Decided to upgrade ubuntu to 14-x.
Updated everything. And the /vagrant folder broke :) (tobish shows empty, although there should be a lot of folders)
Question: How to make the vagrant folder work again?
ps I hope someone faced such problem. I would be grateful for any hint)

Answer 1

This error can occur due to different versions of VirtualBox running Vagrant and VirtualBox Guest Additions in the guest.
You can read how to fix this here: Installing Virtualbox Guest additions on Ubuntu Server