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

I ran into the same issue, but in my case it was because I had ran vagrant up under sudo, and when I came back to it later I'd forgotten.

Silly mistake, but I'm sure it's not the first time it's happened someone :)