Vagrant Not Starting Up. User that created VM doesn't match current user

Question

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

Answer 1

Just to add on to Fred's https://stackoverflow.com/a/32256848/2065804 answer.

Make sure you changed the correct VM's machine. For example, my VM name is NOT default but rather called homestead-7.

So the path to the correct one is:

.vagrant/machines/homestead-7/virtualbox/creator_uid

and not:

.vagrant/machines/default/virtualbox/creator_uid

This error happened to me when I changed my Mac to another Mac.