Guest Additions / synced folder issues - probably makes sense to mention these steps under quick tutorial

[andyd0]

This is likely due to later versions of VirtualBox and GuestAdditions but probably makes sense to list this under the steps in case there are incompatibilities...

vagrant plugin repair
vagrant plugin expunge --reinstall
vagrant reload

That fixed the issue I was having with the sync'd folder. I tried a lot of different methods but that was the only thing that worked for me consistently.