Same error. I'm using GNU bash, version 4.3.30(1)-release (x86_64-pc-linux-gnu)

Looks like the error message changed and it's not getting matched.

ERROR: WARNING: The VirtualBox kernel modules are not loaded.
         Please load all the needed kernel modules by:

           for m in vbox{drv,netadp,netflt}; do modprobe $m; done

         You will not be able to start VMs until this problem is fixed.
4.3.18_Gentoor96516

I've added a check for the new string, but I wonder if we should be more loose in our checking. e.g. Anything with a newline is probably an error.

Good catch, sorry I didn't see this sooner. We just switched to VirtualBox 5.0, so I'll double check the err message there and get this fixed.

Is there any news on this?

same output here 😧

Same for me (ubuntu 14.04), I found a solution.
The script tried to get the available versions with
VBoxManage -v
However this command fails and the script crash on line 133 (outbound variable).
The first command asks me to install virtualbox-dkms.
sudo apt-get install virtualbox-dkms

No more problem :)

Hmm tried @ikodev 's solution but didn't work for me - Ubuntu 17.04 / VirtualBox 5.1.22_Ubuntu r115126

virtualbox-dkms is already the newest version (5.1.22-dfsg-0ubuntu1.17.04.1).
virtualbox-dkms set to manually installed.

Cheers