"An error has occurred while trying to create a virtualbox host-only network interface" (Linux)

There are many possible causes to this issue. Most of the time, this is due to incomplete VirtualBox installation.

To solve it, you can try the following solutions:

Is VirtualBox kernel module properly installed?

1. Refer to the documentation from VirtualBox: https://www.virtualbox.org/manual/ch02.html#install-linux-host
2. Make sure that the dkms package is installed and that it compiles VirtualBox kernel modules each time a new kernel update is available. To do so, run

   sudo /usr/lib/virtualbox/vboxdrv.sh status

   If they are correctly loaded, you will get the message "VirtualBox kernel modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) are loaded”.
   
   If not, try to reload kernel modules manually by running

   sudo modprobe vboxdrv

   If the above doesn’t work, force VirtualBox kernel modules compilation. To do so, run:

   sudo /sbin/vboxconfig

   or

   sudo apt-get --reinstall install virtualbox-dkms

If none of the above works, try to remove VirtualBox and re-install it. We strongly recommend using the package form your distribution repositories.

Is your user account in the “vboxusers” group?

If not, run:

sudo usermod -a -G vboxusers $USER

Then logout and back again or reboot your PC for changes to take effect.

Are you using a VPN?

If so, please refer to Genymotion Desktop and VPN