If you see error like this on Vagrant 1.2.2 and VirtualBox 4.2.14, when you do ‘vagrant up’
C:\Users\kazuki-h>vagrant up Bringing machine 'default' up with 'virtualbox' provider... [default] Importing base box 'hogehoge'... There was an error while executing `VBoxManage`, a CLI used by Vagrant for controlling VirtualBox. The command and stderr is shown below. Command: ["import", "C:/Users/kazuki-h/.vagrant.d/boxes/hogehoge/virtualbox/box.ovf"] Stderr: 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% Interpreting C:\Users\kazuki-h\.vagrant.d\boxes\hogehoge\virtualbox\box.ovf... OK. 0%... Progress object failure: RPC_S_SERVER_UNAVAILABLE 0x800706BA
Downgrade VirtualBox to 4.2.12, it will works fine.
It could raise again on Mac OS X or Linux, because VirtualBox’s changes might be directly responsible for this error.
Refarence:
Edit
This problem has been fixed in the version 4.2.16.
ashphy coding 
Thanks! Worked for me too. Very helpful.
Thanks for the tip. Be nice if Oracle would link to older versions more directly, so here’s my good deed for the day: Direct link to Virtualbox 4.2.12 executables.
http://download.virtualbox.org/virtualbox/4.2.12/
This problem has been fixed. It will be merged into next VirtualBox release. https://www.virtualbox.org/ticket/11895
Thanks, this worked.
Hat dies auf janikvonrotz rebloggt und kommentierte:
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Awesome. Saved me today.
Thank you!
Thanks!