Vagrant, Virtualbox: Provider 'virtualbox' not found. We'll automatically install it now

Question

I am running vagrant up command on Windows 7 box (Vagrantfile exists in work dir) and getting the message:

Provider 'virtualbox' not found. We'll automatically install it now...

Virtual box has been installed and vbox_install_path env variable is correctly set.

Working in intranet, there is no way to automatically install VB from the internet.

Answer 1

Vagrant 1.8.4 and older are not compatible with the VirtualBox 5.1.x.

Vagrant 1.8.5 has been released already and it supports the VirtualBox 5.1.x.

Answer 2

Sorted out. Vagrant 1.8.4 does not work with VirtualBox 5.1.0 (on Win7 at least). Fixed after VB version was changed to 5.0.20