Windows 7 install can't find guest additions iso

[Jerry Quinn]

I installed a valid windows 7 image on a vm. I'm now trying to import guest additions using the ubuntu packages. I then access:
Devices->Insert Guest Additions CD Image ...

and I get the following error:

Unable to insert the virtual optical disk /usr/share/virtualbox/VBoxGuestAdditions.iso into the machine test1.

Could not mount the media/drive '/usr/share/virtualbox/VBoxGuestAdditions.iso' (VERR_PDM_DRIVER_NOT_FOUND).

Result Code:
NS_ERROR_FAILURE (0x80004005)
Component:
ConsoleWrap
Interface:
IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
Callee:
IMachine {85cd948e-a71f-4289-281e-0ca7ad48cd89}

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: virtualbox-guest-additions-iso 5.2.11-122181-1
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Sep 24 19:18:49 2018
InstallationDate: Installed on 2016-05-30 (847 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: virtualbox-guest-additions-iso
UpgradeStatus: Upgraded to bionic on 2018-09-17 (7 days ago)

[Gianfranco Costamagna (costamagnagianfranco)]

please try again, I can't really reproduce

[Launchpad Janitor (janitor)]

[Expired for virtualbox-guest-additions-iso (Ubuntu) because there has been no activity for 60 days.]