Vagrant has detected that you have a version of VirtualBox installed
that is not supported. Please install one of the supported versions
listed below to use Vagrant:
4.0, 4.1, 4.2
Reason : VirtualBox 4.3.28 is not compatible with Vagrant 1.0.5
1. Check :
vagrant --version
Vagrant version 1.0.5
2. Delete the Vagrant folder in Applications.
3. Download the latest vagrant from : http://www.vagrantup.com/downloads
I installed vagrant 1.7.2. This is compatible with VirtualBox 4.3
