Vagrant error : Failed to mount folders in Linux guest

Question

I have some issues with Vagrant shared folders, my base system is Ubuntu 13.10 desktop.

I do not understand why I have this error is something that is not right conf

Answer 1

This seems to be due to an incompatibility with the vbguest vagrant plugin and the latest version(s) of vagrant. It is trying to update the guest additions and failing to do it completely/properly.