[Solved]Can't set 2.0 or 3.0 USB controller in the configuration

[ruk1n]

Hello,

When I try to set the USB configuration menu with 2.0 or 3.0 I get the following message :

Implementation of the USB 2.0 controller not found!
Because the USB 2.0 controller state is part of the saved VM state, the VM cannot be started. To fix this problem, either install the 'Oracle VM VirtualBox Extension Pack' or disable USB 2.0 support in the VM settings.
Note! This error could also mean that an incompatible version of the 'Oracle VM VirtualBox Extension Pack' is installed (VERR_NOT_FOUND).


Code d'erreur :
NS_ERROR_FAILURE (0x80004005)
Composant :
ConsoleWrap
Interface :
IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

Host OS is Ubuntu 16.04
Guest is Windows 10
Virtualbox version is 5.0.40_Ubuntu r115130
VB extension pack was already installed from VBoxGuestAdditions_5.0.40.iso

Any clue ?

Thanks in advance for your help
--
ruk1n

[scottgus1]

Any clue ?

Yes:

VB extension pack was already installed from VBoxGuestAdditions_5.0.40.iso

Extension Pack and Guest Additions are two different things. GAs go in the guest via the ISO. EP is downloaded separately from the Virtualbox installer and goes on the host.

And you can't change hardware on the guest until it is properly shut down. Start it then shut it down nicely from within the guest OS. If you can't start the guest, even after rebooting the host, right-click the guest and choose Discard Saved State. This will cause the guest OS to restart as if the plug were pulled on it.

[socratis]

Virtualbox version is 5.0.40_Ubuntu r115130

That's not the official VirtualBox version, that's the Ubuntu fork. Please uninstall/delete/purge that one (the one from the Ubuntu store) and download the official one before attempting to install the ExtPack, which you also have to download from the official site: https://www.virtualbox.org/wiki/Downloads

[ruk1n]

It works now !
Many thanks for your help
--
ruk1n