I was trying to start up my vagrant machine, so I navigated to the folder where my vagrantfile is, and used:
vagrant up && vagrant ssh
but I got the
It's possible you ran the command: sudo vagrant up
sudo vagrant up
This would mean as your regular user you are unable to see or even delete the /.vagrant folder and files.
/.vagrant
If so, simply run: sudo vagrant destroy -f
sudo vagrant destroy -f
Then you should be able to run (as your normal user account): vagrant up
vagrant up