VM has become 'inaccessible' - Vagrant no longer working

Question

For some reason this morning when I run \'vagrant up\' I get the following error (this has worked absolutely fine for over a year)

Your VM has b         


        

Answer 1

By using command line, you can remove all inaccessible boxes by using an one-liner:

VBoxManage list vms |grep inaccessible |cut -d "{" -f2 |cut -d "}" -f1 |xargs -L1 VBoxManage unregistervm