It doesn't make much sense to reinstall Vagrantfile once lost the association with vbox, yet vbox is sitting right there.
Here's a list of steps you could ease your pain.
Steps:
-
Go to your Vagrantfile directory
-
Get the id of your target
VBoxManage list vms "src_default_1403300208068_90865" {db83545f-61d2-4621-8edc-081c3b8a7530}
-
Relink to vagrant
i.e.
cd .vagrant/machines/default/virtualbox
echo -n "db83545f-61d2-4621-8edc-081c3b8a7530" > id
or
echo -n "db83545f-61d2-4621-8edc-081c3b8a7530" > .vagrant/machines/default/virtualbox/id
* Works on vagrant 1.6.3
Reference: