Vagrant Failing To Launch

I use Vagrant based virtual machines to develop on. These are great as you can create custom environments at will without affecting your main machine.

Today I had the following error while trying to bring up my development environment.

wks:Vagrant robertprice$ vagrant up devvm
[ccfs] VM already created. Booting if it's not already running...
[ccfs] Clearing any previously set forwarded ports...
[ccfs] Forwarding ports...
[ccfs] -- 22 => 2222 (adapter 1)
[ccfs] -- 80 => 4567 (adapter 1)
[ccfs] Creating shared folders metadata...
[ccfs] Clearing any previously set network interfaces...
There was an error executing the following command with VBoxManage:

["hostonlyif", "create"]

For more information on the failure, enable detailed logging with

This turned out to be an error with VirtualBox, the virtualisation environment Vagrant uses. The solution is to force a restart of VirtualBox.

sudo /Library/StartupItems/VirtualBox/VirtualBox restart

I hope this helps others experiencing the same problem.